MEMPOOL SPACE K.K. logo

MEMPOOL SPACE K.K.

19 Marks
Corp.
First Filed:Jul 14, 2021Latest Filed:May 20, 2025Address:Mori Tower 16F, Roppongi Hills, Minato, Tokyo, 106-6116, JP

Portfolio Overview

Top Classes

Class 42
Software, IT Services & Scientific Research
11(58%)
Class 9
Electronics, Software & Scientific Equipment
9(47%)
Class 25
Clothing, Footwear & Headgear
8(42%)

TTAB Proceedings

Total Proceedings
3
As Plaintiff
3(100%)
As Defendant
0(0%)

Top Firms

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Trademark Activity Timeline(20212026)

Trademark Portfolio

19 results

(current & previous marks)

Refine by Mark/Description🔽
Filed
Registered
Last Activity
MEMPOOL ACCELERATOR
MEMPOOL ACCELERATOR
Trademark
Combined
PENDING
Owner:
Serial:99193937
Filed:May 20, 2025
Classes:9, 25, 42
Description: Downloadable computer software for submitting pending cryptocurrency transactions into a priority memory pool queue to be mined into blocks on a blockchain; Hats; Loungewear; Socks; Sweaters; Sweatshirts; Hooded sweatshirts; T-shirts; Tank tops; Application service provider featuring application programming interface (API) software for submitting pending cryptocurrency transactions into a priority memory pool queue to be mined into blocks on a blockchain
MEMPOOL RESEARCH
MEMPOOL RESEARCH
Service Mark
Combined
REGISTERED
Owner:
Serial:99193513
Filed:May 20, 2025
Classes:41
Registration:8210175
Registered:Apr 14, 2026
Description: Non-downloadable electronic publications in the nature of reports, articles, and analytical reviews in the field of cryptocurrency and blockchain technology; Providing a website featuring non-downloadable publications in the nature of reports, articles, and analytical reviews in the field of cryptocurrency and blockchain technology; No claim is made to the exclusive right to use RESEARCH, apart from the mark as shown.
MEMPOOL RESEARCH
MEMPOOL RESEARCH
Service Mark
Word
PENDING
Owner:
Serial:99193440
Filed:May 20, 2025
Classes:41
Description: Non-downloadable electronic publications in the nature of reports, articles, and analytical reviews in the field of cryptocurrency and blockchain technology; Providing a website featuring non-downloadable publications in the nature of reports, articles, and analytical reviews in the field of cryptocurrency and blockchain technology; No claim is made to the exclusive right to use RESEARCH, apart from the mark as shown.
MEMPOOL WALLET
MEMPOOL WALLET
Trademark
Word
PENDING
Owner:
Serial:99193362
Filed:May 20, 2025
Classes:9
Description: Downloadable computer software for use as a cryptocurrency wallet; Downloadable mobile applications for managing and storing cryptocurrency; Downloadable computer software for accessing, sending, receiving, and managing digital currency and blockchain assets via smartphones and computers; No claim is made to the exclusive right to use WALLET, apart from the mark as shown.
99183132
99183132
Trademark
Design
REGISTERED
Owner:
Serial:99183132
Filed:May 13, 2025
Classes:9, 25, 42
Registration:8068199
Registered:Dec 16, 2025
Description: Downloadable computer software for accessing, displaying, tracking, and analyzing information in the field of cryptocurrency, namely, initiating cryptocurrency transactions, pending cryptocurrency transactions, completed cryptocurrency transactions on a blockchain, cryptocurrency trading, cryptocurrency mining, and cryptocurrency peer-to-peer networks; Hats; Loungewear; Socks; Sweaters; T-shirts; Tank tops; Sweatshirts; Hooded sweatshirts; Application service provider featuring application programming interface (API) software for accessing, displaying, tracking, and analyzing information being data in the field of cryptocurrency being cryptocurrency transaction fees, pending cryptocurrency transactions, completed cryptocurrency transactions on a blockchain, cryptocurrency trading activity, cryptocurrency mining data, and cryptocurrency peer-to-peer networks
MEMPOOL
MEMPOOL
Trademark
Word
REGISTERED
Owner:
Serial:98547366
Filed:May 13, 2024
Classes:25
Registration:7687820
Registered:Feb 11, 2025
Description: Hats; Headbands; Leggings; Lingerie; Loungewear; Neckties; Pajamas; Scarves; Shorts; Socks; Sweaters; Sweatshirts; Tights; Undershirts; Bandanas; Boxer shorts; Gym shorts; Hooded sweatshirts; Knit tops; Pocket squares; T-shirts; Tank tops; Underwear
98216316
98216316
Trademark
Design
PENDING
Owner:
Serial:98216316
Filed:Oct 10, 2023
Classes:9, 25, 42
Description: Downloadable computer software for accessing, displaying, tracking, and analyzing information in the field of cryptocurrency, namely, initiating cryptocurrency transactions, pending cryptocurrency transactions, completed cryptocurrency transactions on a blockchain, cryptocurrency trading, cryptocurrency mining, and cryptocurrency peer-to-peer networks; Hats; Headbands; Leggings; Lingerie; Loungewear; Neckties; Pajamas; Scarves; Shorts; Socks; Sweaters; Sweatshirts; Tights; Undershirts; Underwear; Bandanas; Boxer shorts; Knit tops; Pocket squares; T-shirts; Tank tops; Gym shorts; Hooded sweatshirts; Application service provider featuring application programming interface (API) software for accessing, displaying, tracking, and analyzing information being data in the field of cryptocurrency being cryptocurrency transaction fees, pending cryptocurrency transactions, completed cryptocurrency transactions on a blockchain, cryptocurrency trading activity, cryptocurrency mining data, and cryptocurrency peer-to-peer networks
BE YOUR OWN EXPLORER
REGISTERED
Owner:
Serial:98216224
Filed:Oct 10, 2023
Classes:9, 42
Registration:8315597
Registered:Jun 23, 2026
Description: Downloadable computer software for accessing, displaying, tracking, and analyzing information in the field of cryptocurrency, namely, initiating cryptocurrency transactions, pending cryptocurrency transactions, completed cryptocurrency transactions on a blockchain, cryptocurrency trading, cryptocurrency mining, and cryptocurrency peer-to-peer networks; Application service provider featuring application programming interface (API) software for accessing, displaying, tracking, and analyzing information being data in the field of cryptocurrency being cryptocurrency transaction fees, pending cryptocurrency transactions, completed cryptocurrency transactions on a blockchain, cryptocurrency trading activity, cryptocurrency mining data, and cryptocurrency peer-to-peer networks
EXPLORE THE FULL BITCOIN ECOSYSTEM
REGISTERED
Owner:
Serial:97615323
Filed:Sep 30, 2022
Classes:42
Registration:7264047
Registered:Jan 2, 2024
Description: Application service provider featuring application programming interface (API) software for accessing, displaying, tracking, and analyzing information being data in the field of cryptocurrency being cryptocurrency transaction fees, pending cryptocurrency transactions, completed cryptocurrency transactions on a blockchain, cryptocurrency trading activity, cryptocurrency mining data, and cryptocurrency peer-to-peer networks
MEMPOOL .SPACE
MEMPOOL .SPACE
Trademark
Combined
REGISTERED
Owner:
Serial:97615402
Filed:Sep 30, 2022
Classes:9
Registration:7121835
Registered:Jul 25, 2023
Description: Downloadable computer software for accessing, displaying, tracking, and analyzing information being data in the field of cryptocurrency being initiating cryptocurrency transactions, pending cryptocurrency transactions, completed cryptocurrency transactions on a blockchain, cryptocurrency trading, cryptocurrency mining, and cryptocurrency peer-to-peer networks
MEMPOOL ENTERPRISE
MEMPOOL ENTERPRISE
Service Mark
Word
REGISTERED
Owner:
Serial:97612355
Filed:Sep 29, 2022
Classes:42
Registration:7064178
Registered:May 23, 2023
Description: Software as a service (SAAS) services, namely, hosting software for use by others for accessing, displaying, tracking, and analyzing information being data in the field of cryptocurrency being cryptocurrency transaction fees, pending cryptocurrency transactions, completed cryptocurrency transactions on a blockchain, cryptocurrency trading activity, cryptocurrency mining data, and cryptocurrency peer-to-peer networks
MEMPOOL LIQUIDITY
MEMPOOL LIQUIDITY
Service Mark
Word
ABANDONED
Owner:
Serial:97612372
Filed:Sep 29, 2022
Classes:42
MEMPOOL ACCELERATOR
MEMPOOL ACCELERATOR
Trademark
Word
REGISTERED
Owner:
Serial:97420629
Filed:May 20, 2022
Classes:9, 25, 42
Registration:7715723
Registered:Mar 4, 2025
Description: Downloadable computer software for submitting pending cryptocurrency transactions into a priority memory pool queue to be mined into blocks on a blockchain; T-shirts; sweaters; shorts; sweatshirts; knit tops; boxer shorts; pajamas; undershirts; underwear; tank tops; lingerie; loungewear; neckties; leggings; socks; scarves; hats; Caps being headwear; bandanas; headbands; pocket squares; exercise and aerobic wear, namely, pants, shorts, t-shirts, tights, and tank tops; "MEMPOOL" IN INTERNATIONAL CLASSES 9 AND 42; Application service provider featuring application programming interface (API) software for submitting pending cryptocurrency transactions into a priority memory pool queue to be mined into blocks on a blockchain
90827856
90827856
Trademark
Design
REGISTERED
Owner:
Serial:90827856
Filed:Jul 14, 2021
Classes:42
Registration:7392162
Registered:May 21, 2024
Description: Downloadable computer software for accessing, displaying, tracking, and analyzing information in the field of cryptocurrency, namely, initiating cryptocurrency transactions, pending cryptocurrency transactions, completed cryptocurrency transactions on a blockchain, cryptocurrency trading, cryptocurrency mining, and cryptocurrency peer-to-peer networks
90827953
90827953
Trademark
Design
REGISTERED
Owner:
Serial:90827953
Filed:Jul 14, 2021
Classes:42
Registration:6921272
Registered:Dec 13, 2022
Description: Downloadable computer software for accessing, displaying, tracking, and analyzing information in the field of cryptocurrency, namely, initiating cryptocurrency transactions, pending cryptocurrency transactions, completed cryptocurrency transactions on a blockchain, cryptocurrency trading, cryptocurrency mining, and cryptocurrency peer-to-peer networks
MEMPOOL
MEMPOOL
Trademark
Combined
REGISTERED
Owner:
Serial:90828138
Filed:Jul 14, 2021
Classes:9, 25, 42
Registration:6921273
Registered:Dec 13, 2022
Description: Class 9: Downloadable computer software for accessing, displaying, tracking, and analyzing information in the field of cryptocurrency, namely, initiating cryptocurrency transactions, pending cryptocurrency transactions, completed cryptocurrency transactions on a blockchain, cryptocurrency trading, cryptocurrency mining, and cryptocurrency peer-to-peer networks
Class 25: T-shirts, sweaters, shorts, sweatshirts, knit tops, boxer shorts, pajamas, undershirts, underwear, tank tops, lingerie, loungewear, neckties, leggings, socks, scarves, hats, caps, bandannas, headbands, pocket squares, and exercise and aerobic wear, namely, pants, shorts, t-shirts, tights, tank tops
Class 42: Interactive website and application programming interface (API) for accessing, displaying, tracking, and analyzing information in the field of cryptocurrency, namely, cryptocurrency transaction fees, pending cryptocurrency transactions, completed cryptocurrency transactions on a blockchain, cryptocurrency trading activity, cryptocurrency mining data, and cryptocurrency peer-to-peer networks
MEMPOOL.SPACE
MEMPOOL.SPACE
Trademark
Word
REGISTERED
Owner:
Serial:90828169
Filed:Jul 14, 2021
Classes:25
Registration:7318680
Registered:Mar 5, 2024
Description: T-shirts, sweaters, shorts, sweatshirts, knit tops, boxer shorts, pajamas, undershirts, underwear, tank tops, lingerie, loungewear, neckties, leggings, socks, scarves, hats, caps, bandannas, headbands, pocket squares, and exercise and aerobic wear, namely, pants, shorts, t-shirts, tights, tank tops
THE MEMPOOL OPEN SOURCE PROJECT
REGISTERED
Owner:
Serial:90828236
Filed:Jul 14, 2021
Classes:9
Registration:7159991
Registered:Sep 12, 2023
Description: Downloadable computer software for accessing, displaying, tracking, and analyzing information in the field of cryptocurrency, namely, initiating cryptocurrency transactions, pending cryptocurrency transactions, completed cryptocurrency transactions on a blockchain, cryptocurrency trading, cryptocurrency mining, and cryptocurrency peer-to-peer networks | Interactive website and application programming interface (API) providing online non-downloadable software for accessing, displaying, tracking, and analyzing information in the field of cryptocurrency, namely, cryptocurrency transaction fees, pending cryptocurrency transactions, completed cryptocurrency transactions on a blockchain, cryptocurrency trading activity, cryptocurrency mining data, and cryptocurrency peer-to-peer networks
THE MEMPOOL OPEN SOURCE PROJECT
REGISTERED
Owner:
Serial:90979302
Filed:Jul 14, 2021
Classes:25
Registration:7095212
Registered:Jun 27, 2023
Description: T-shirts, sweaters, shorts, sweatshirts, knit tops, boxer shorts, pajamas, undershirts, underwear, tank tops, lingerie, loungewear, neckties, leggings, socks, scarves, hats, caps, bandannas, headbands, pocket squares, and exercise and aerobic wear, namely, pants, shorts, T-shirts, tights, tank tops