STEALTH BIOTHERAPEUTICS INC. logo

STEALTH BIOTHERAPEUTICS INC.

35 Marks
Corp.
First Filed:Nov 12, 2014Latest Filed:Jun 5, 2026Address:123 Highland Ave, Suite 201, Needham, MA 02494, US

Portfolio Overview

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1

Top Classes

Class 5
Pharmaceuticals
30(86%)
Class 42
Software, IT Services & Scientific Research
22(63%)
Class 35
Advertising, Business Services & Retail
3(9%)

TTAB Proceedings

Total Proceedings
6
As Plaintiff
0(0%)
As Defendant
6(100%)

Top Firms

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Trademark Activity Timeline(2014 – 2026)

Trademark Portfolio

36 results

(current & previous marks)

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Filed
Registered
Last Activity
99868628
99868628
Trademark
Design
PENDING
Owner:
Serial:99868628
Filed:Jun 5, 2026
Classes:5, 21, 25
Description: Class 5: Biopharmaceutical preparations for the treatment of mitochondrial, cardiovascular, renal, ophthalmic, neurologic and metabolic diseases and disorders; Pharmaceutical preparations for the prevention of mitochondrial, cardiovascular, renal, ophthalmic, neurologic and metabolic diseases and disorders; Biological preparations for the treatment of cellular abnormalities
Class 21: Portable coolers, non-electric; Reusable stainless steel water bottles sold empty
Class 25: Tops as clothing; Bottoms as clothing; Sweatshirts; Coats; T-shirts; Vests
M
M
Trademark
Combined
PENDING
Owner:
Serial:99868103
Filed:Jun 5, 2026
Classes:5, 42
Description: Class 5: Biopharmaceutical preparations for the prevention and treatment of mitochondrial, cardiovascular, renal, ophthalmic, neurologic, myopathic, inflammatory, and metabolic diseases and disorders; biological preparations for the prevention and treatment of cellular abnormalities
Class 42: Scientific research and development; biopharmaceutical research, development and testing; medical and scientific research in the mitochondrial, cardiovascular, renal, ophthalmic, neurologic, myopathic, inflammatory, and metabolic system field
M
M
Trademark
Combined
PENDING
Owner:
Serial:99868076
Filed:Jun 5, 2026
Classes:5, 42
Description: Class 5: Biopharmaceutical preparations for the prevention and treatment of mitochondrial, cardiovascular, renal, ophthalmic, neurologic, myopathic, inflammatory, and metabolic diseases and disorders; biological preparations for the prevention and treatment of cellular abnormalities
Class 42: Scientific research and development; biopharmaceutical research, development and testing; medical and scientific research in the mitochondrial, cardiovascular, renal, ophthalmic, neurologic, myopathic, inflammatory, and metabolic system field
M MIGHTY THERAPEUTICS
M MIGHTY THERAPEUTICS
Trademark
Combined
PENDING
Owner:
Serial:99868018
Filed:Jun 5, 2026
Classes:5, 42
Description: Class 5: Biopharmaceutical preparations for the prevention and treatment of mitochondrial, cardiovascular, renal, ophthalmic, neurologic, myopathic, inflammatory, and metabolic diseases and disorders; biological preparations for the prevention and treatment of cellular abnormalities
Class 42: Scientific research and development; Biopharmaceutical research, development, and testing; medical and scientific research in the mitochondrial, cardiovascular, renal, ophthalmic, neurologic, myopathic, inflammatory, and metabolic system field
M MIGHTY THERAPEUTICS
M MIGHTY THERAPEUTICS
Trademark
Combined
PENDING
Owner:
Serial:99868046
Filed:Jun 5, 2026
Classes:5, 42
Description: Class 5: Biopharmaceutical preparations for the prevention and treatment of mitochondrial, cardiovascular, renal, ophthalmic, neurologic, myopathic, inflammatory, and metabolic diseases and disorders; biological preparations for the prevention and treatment of cellular abnormalities
Class 42: Scientific research and development; biopharmaceutical research, development and testing; medical and scientific research in the mitochondrial, cardiovascular, renal, ophthalmic, neurologic, myopathic, inflammatory, and metabolic system field
PIONEERING MITOCHONDRIAL MEDICINE
PIONEERING MITOCHONDRIAL MEDICINE
Trademark
Word
PENDING
Owner:
Serial:99868344
Filed:Jun 5, 2026
Classes:5, 42
Description: Class 5: Biopharmaceutical preparations for the prevention and treatment of mitochondrial, cardiovascular, renal, ophthalmic, neurologic, myopathic, inflammatory, and metabolic diseases and disorders; Biological preparations for the prevention and treatment of cellular abnormalities
Class 42: Scientific research and development; Biopharmaceutical research, development, and testing; Medical and scientific research in the mitochondrial, cardiovascular, renal, ophthalmic, neurologic, myopathic, inflammatory, and metabolic system field
MITO ASSIST
MITO ASSIST
Service Mark
Stylized
PENDING
Owner:
Serial:99656058
Filed:Feb 17, 2026
Classes:35, 44
Description: Class 35: Medical billing support services
Class 44: Providing health information in the field of mitochondrial disease, its treatment and related support services
CHARGE THERAPEUTICS
CHARGE THERAPEUTICS
Trademark
Word
PENDING
Owner:
Serial:99148525
Filed:Apr 22, 2025
Classes:5, 42
Description: Biopharmaceutical preparations for the treatment of mitochondrial, cardiovascular, renal, ophthalmic, neurologic and metabolic diseases and disorders; Pharmaceutical preparations for the prevention of mitochondrial, cardiovascular, renal, ophthalmic, neurologic and metabolic diseases and disorders; Biological preparations for the treatment of cellular abnormalities; Scientific research and development; biopharmaceutical research, development and testing; Medical and scientific research in the field of mitochondrial, cardiovascular, renal, ophthalmic, neurologic, myopathic and metabolic systems
MYPLENZIA
MYPLENZIA
Trademark
Word
ABANDONED
Owner:
Serial:99094229
Filed:Mar 20, 2025
Classes:5
Description: Biopharmaceutical preparations for the treatment of mitochondrial, cardiovascular, renal, ophthalmic, neurologic and metabolic diseases and disorders; Pharmaceutical preparations for the prevention of mitochondrial, cardiovascular, renal, ophthalmic, neurologic and metabolic diseases and disorders; Biological preparations for the treatment of cellular abnormalities
FORZINITY
FORZINITY
Trademark
Word
PENDING
Owner:
Serial:99087341
Filed:Mar 17, 2025
Classes:5
Description: Biopharmaceutical preparations for the treatment of mitochondrial, cardiovascular, renal, ophthalmic, neurologic and metabolic diseases and disorders; Pharmaceutical preparations for the prevention of mitochondrial, cardiovascular, renal, ophthalmic, neurologic and metabolic diseases and disorders; Biological preparations for the treatment of cellular abnormalities.
FORZINITY (ELAMIPRETIDE HCI) INJECTION
FORZINITY (ELAMIPRETIDE HCI) INJECTION
Trademark
Combined
PENDING
Owner:
Serial:99087371
Filed:Mar 17, 2025
Classes:5
Description: Biopharmaceutical preparations for the treatment of mitochondrial, cardiovascular, renal, ophthalmic, neurologic and metabolic diseases and disorders; Pharmaceutical preparations for the prevention of mitochondrial, cardiovascular, renal, ophthalmic, neurologic and metabolic diseases and disorders; Biological preparations for the treatment of cellular abnormalities.; No claim is made to the exclusive right to use (Elamipretide HCI) injection, apart from the mark as shown.
MITO BIOTHERAPEUTICS
MITO BIOTHERAPEUTICS
Trademark
Word
ABANDONED
Owner:
Serial:98858375
Filed:Nov 18, 2024
Classes:5, 42
Description: Biopharmaceutical preparations for the prevention and treatment of mitochondrial, cardiovascular, renal, ophthalmic, neurologic, myopathic and metabolic diseases and disorders; biological preparations for the prevention and treatment of cellular preparations for the prevention and treatment of cellular abnormalities; Scientific research and development; biopharmaceutical research, development and testing; medical and scientific research in the mitochondrial, cardiovascular, renal, ophthalmic, neurologic, myopathic and metabolic system field
BRIGHT SKY THERAPEUTICS
BRIGHT SKY THERAPEUTICS
Trademark
Word
PENDING
Owner:
Serial:98676560
Filed:Jul 31, 2024
Classes:5, 42
Description: Biological preparations for the prevention and treatment of cellular abnormalities.; Biopharmaceutical preparations for the prevention and treatment of mitochondrial, cardiovascular, renal, ophthalmic, neurologic, myopathic and metabolic diseases and disorders; "THERAPEUTICS"; Scientific research and development; biopharmaceutical research, development and testing; medical and scientific research in the mitochondrial, cardiovascular, renal, ophthalmic, neurologic, myopathic and metabolic system fields.
BRIGHTSKY THERAPEUTICS
BRIGHTSKY THERAPEUTICS
Trademark
Word
PENDING
Owner:
Serial:98676605
Filed:Jul 31, 2024
Classes:5, 42
Description: Biopharmaceutical preparations for the prevention and treatment of mitochondrial, cardiovascular, renal, ophthalmic, neurologic, myopathic and metabolic diseases and disorders; biological preparations for the prevention and treatment of cellular abnormalities.; "THERAPEUTICS"; Scientific research and development; biopharmaceutical research, development and testing; medical and scientific research in the mitochondrial, cardiovascular, renal, ophthalmic, neurologic, myopathic and metabolic system fields.
ENERGIZE BIOTHERAPEUTICS
ENERGIZE BIOTHERAPEUTICS
Trademark
Word
PENDING
Owner:
Serial:98676640
Filed:Jul 31, 2024
Classes:5, 42
Description: Biopharmaceutical preparations for the prevention and treatment of mitochondrial, cardiovascular, renal, ophthalmic, neurologic, myopathic and metabolic diseases and disorders; biological preparations for the prevention and treatment of cellular abnormalities.; "BIOTHERAPEUTICS"; biopharmaceutical research, development and testing; medical and scientific research in the mitochondrial, cardiovascular, renal, ophthalmic, neurologic, myopathic and metabolic system fields.; Scientific research and development
HANDSPRING THERAPEUTICS
HANDSPRING THERAPEUTICS
Trademark
Word
PENDING
Owner:
Serial:98676704
Filed:Jul 31, 2024
Classes:5, 42
Description: Biopharmaceutical preparations for the prevention and treatment of mitochondrial, cardiovascular, renal, ophthalmic, neurologic, myopathic and metabolic diseases and disorders; biological preparations for the prevention and treatment of cellular abnormalities.; "THERAPEUTICS"; biopharmaceutical research, development and testing; Scientific research and development; medical and scientific research in the mitochondrial, cardiovascular, renal, ophthalmic, neurologic, myopathic and metabolic system fields.
MAINSPRING THERAPEUTICS
MAINSPRING THERAPEUTICS
Trademark
Word
PENDING
Owner:
Serial:98676674
Filed:Jul 31, 2024
Classes:5, 42
Description: Biological preparations for the prevention and treatment of cellular abnormalities.; Biopharmaceutical preparations for the prevention and treatment of mitochondrial, cardiovascular, renal, ophthalmic, neurologic, myopathic and metabolic diseases and disorders; "THERAPEUTICS"; biopharmaceutical research, development and testing; Scientific research and development; medical and scientific research in the mitochondrial, cardiovascular, renal, ophthalmic, neurologic, myopathic and metabolic system fields.
MIGHTY THERAPEUTICS
MIGHTY THERAPEUTICS
Trademark
Word
PENDING
Owner:
Serial:98544515
Filed:May 10, 2024
Classes:5, 42
Description: Biopharmaceutical preparations for the prevention and treatment of mitochondrial, cardiovascular, renal, ophthalmic, neurologic, myopathic and metabolic diseases and disorders; biological preparations for the prevention and treatment of cellular abnormalities; "THERAPEUTICS"; Scientific research and development; biopharmaceutical research, development and testing; medical and scientific research in the mitochondrial, cardiovascular, renal, ophthalmic, neurologic, myopathic and metabolic system field
PROMISE BIOTHERAPEUTICS
PROMISE BIOTHERAPEUTICS
Trademark
Word
ABANDONED
Owner:
Serial:98527302
Filed:Apr 30, 2024
Classes:5, 42
Description: Biopharmaceutical preparations for the prevention and treatment of mitochondrial, cardiovascular, renal, ophthalmic, neurologic, myopathic and metabolic diseases and disorders; biological preparations for the prevention and treatment of cellular abnormalities; Scientific research and development; biopharmaceutical research, development and testing; medical and scientific research in the mitochondrial, cardiovascular, renal, ophthalmic, neurologic, myopathic and metabolic system fields
MITO ASSIST
MITO ASSIST
Service Mark
Word
PENDING
Owner:
Serial:98204621
Filed:Sep 29, 2023
Classes:35, 44
Description: Class 35: Medical billing support services
Class 44: Providing health information on mitochondrial disease, its treatment and related support services
LEADING MITOCHONDRIAL MEDICINE
LEADING MITOCHONDRIAL MEDICINE
Service Mark
Word
ABANDONED
Owner:
Serial:97799406
Filed:Feb 17, 2023
Classes:42
SYNMITO
SYNMITO
Trademark
Word
ABANDONED
Owner:
Serial:97312608
Filed:Mar 15, 2022
Classes:5, 42
Description: Biopharmaceutical preparations for the prevention and treatment of mitochondrial, cardiovascular, renal, ophthalmic, neurologic, myopathic and metabolic diseases and disorders; biological preparations for the prevention and treatment of cellular abnormalities; Scientific research and development; biopharmaceutical research, development and testing; medical and scientific research in the mitochondrial, cardiovascular, renal, ophthalmic, neurologic, myopathic and metabolic system fields
FORZINITY
FORZINITY
Trademark
Word
ABANDONED
Owner:
Serial:90860355
Filed:Aug 2, 2021
Classes:5
Description: Biopharmaceutical preparations for the prevention and treatment of cardiovascular, renal, ophthalmic, neurologic and metabolic diseases and disorders; biological preparations for the prevention and treatment of cellular abnormalities
MYPLENZIA
MYPLENZIA
Trademark
Word
ABANDONED
Owner:
Serial:90860372
Filed:Aug 2, 2021
Classes:5
Description: Biopharmaceutical preparations for the prevention and treatment of cardiovascular, renal, ophthalmic, neurologic and metabolic diseases and disorders; biological preparations for the prevention and treatment of cellular abnormalities
LUMVIO
LUMVIO
Trademark
Word
ABANDONED
Owner:
Serial:90840358
Filed:Jul 21, 2021
Classes:5
SUNNEXA
SUNNEXA
Trademark
Word
ABANDONED
Owner:
Serial:90840406
Filed:Jul 21, 2021
Classes:5
ZADIANT
ZADIANT
Trademark
Word
ABANDONED
Owner:
Serial:90840335
Filed:Jul 21, 2021
Classes:5
CHARGE THERAPEUTICS
CHARGE THERAPEUTICS
Trademark
Word
ABANDONED
Owner:
Serial:90739638
Filed:May 27, 2021
Classes:5, 42
Description: Class 5: Biopharmaceutical preparations for the prevention and treatment of mitochondrial, cardiovascular, renal, ophthalmic, neurologic, myopathic and metabolic diseases and disorders; biological preparations for the prevention and treatment of cellular abnormalities
Class 42: Scientific research and development; biopharmaceutical research, development and testing; medical and scientific research in the mitochondrial, cardiovascular, renal, ophthalmic, neurologic, myopathic and metabolic system fields
FIREFLY THERAPEUTICS
FIREFLY THERAPEUTICS
Trademark
Word
ABANDONED
Owner:
Serial:90739625
Filed:May 27, 2021
Classes:5
SYMITO THERAPEUTICS
SYMITO THERAPEUTICS
Trademark
Word
ABANDONED
Owner:
Serial:90739612
Filed:May 27, 2021
Classes:5, 42
Description: Class 5: Biopharmaceutical preparations for the prevention and treatment of mitochondrial, cardiovascular, renal, ophthalmic, neurologic, myopathic and metabolic diseases and disorders; biological preparations for the prevention and treatment of cellular abnormalities
Class 42: Scientific research and development; biopharmaceutical research, development and testing; medical and scientific research in the mitochondrial, cardiovascular, renal, ophthalmic, neurologic, myopathic and metabolic system fields
AMITO PHARMA
AMITO PHARMA
Trademark
Word
ABANDONED
Owner:
Serial:90694788
Filed:May 6, 2021
Classes:5, 42
Description: Class 5: Biopharmaceutical preparations for the prevention and treatment of mitochondrial, cardiovascular, renal, ophthalmic, neurologic, myopathic and metabolic diseases and disorders; biological preparations for the prevention and treatment of cellular abnormalities
Class 42: Scientific research and development; biopharmaceutical research, development and testing; medical and scientific research in the mitochondrial, cardiovascular, renal, ophthalmic, neurologic, myopathic and metabolic system fields
AMITO THERAPEUTICS
AMITO THERAPEUTICS
Trademark
Word
ABANDONED
Owner:
Serial:90694791
Filed:May 6, 2021
Classes:5, 42
Description: Class 5: Biopharmaceutical preparations for the prevention and treatment of mitochondrial, cardiovascular, renal, ophthalmic, neurologic, myopathic and metabolic diseases and disorders; biological preparations for the prevention and treatment of cellular abnormalities
Class 42: Scientific research and development; biopharmaceutical research, development and testing; medical and scientific research in the mitochondrial, cardiovascular, renal, ophthalmic, neurologic, myopathic and metabolic system fields
MITO ASSIST
MITO ASSIST
Service Mark
Word
ABANDONED
Owner:
Serial:88655214
Filed:Oct 15, 2019
Classes:35
Description: "MITO"
LEADING MITOCHONDRIAL MEDICINE
LEADING MITOCHONDRIAL MEDICINE
Service Mark
Word
CANCELLED
Owner:
Serial:88202721
Filed:Nov 21, 2018
Classes:42
Registration:7122051
Registered:Jul 25, 2023
Description: "MITOCHONDRIAL MEDICINE"; Providing scientific research and development information; providing biopharmaceutical research and development information; providing medical and scientific research informaiton in the cardiovascular, renal, ophthalmic, neurologic and metabolic system fields
86452336
86452336
Trademark
Design
REGISTERED
Owner:
Serial:86452336
Filed:Nov 12, 2014
Classes:5, 42
Registration:5541252
Registered:Aug 14, 2018
Description: Biopharmaceutical preparations for the prevention and treatment of cardiovascular, renal, ophthalmic, neurologic and metabolic diseases and disorders; biological preparations for the prevention and treatment of cellular abnormalities; Scientific research and development; biopharmaceutical research, development and testing; medical and scientific research in the cardiovascular, renal, ophthalmic, neurologic and metabolic system fields
NOT TOO RARE TO CARE
NOT TOO RARE TO CARE
Service Mark
Word
Previous
PENDING
Owner:
Serial:98233699
Filed:Oct 20, 2023
Classes:45
Description: Online social networking services for individuals affected by Barth syndrome