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Ask any trademark question.Markus answers from the record.

Search 14M USPTO records, TTAB cases and law firms in plain English. Answers cite records you can check.

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Unlimited on Professional and Max, and in the free trial. Starter gets 5 messages a month.

Ask MarkusTTAB · opposer history

My client's drinkware brand just received an extension of time to oppose from YETI Coolers. What has YETI opposed or tried to cancel over the last five years, what kinds of marks does it go after, and how did those cases end? Does it usually litigate to a decision or settle?My client's drinkware brand just received an extension of time to oppose from YETI Coolers. What has YETI opposed or tried to cancel over the last five years, what kinds of marks does it go after, and how did those cases end? Does it usually litigate to a decision or settle?My client's drinkware brand just received an extension of time to oppose from YETI Coolers. What has YETI opposed or tried to cancel over the last five years, what kinds of marks does it go after, and how did those cases end? Does it usually litigate to a decision or settle?

Markus
Read the owner's TTAB record
Counted the owner's TTAB cases
Searched Board opinions
65 proceedings · no merits ruling

65 substantive inter partes proceedings in the five-year window: 64 oppositions and 1 cancellation, targeting 66 distinct marks. Only 4 are still open.

Opposed markNow
TUNDRA TAPAbandoned
YONDERFUMEAbandoned
NOTYETINGAbandoned
Real session, Sep 27, 2026 · answered in 32 s · public TTAB record, client fictionalFull answer

Don't take our word for it. Read the sessions.

Real sessions, checked against the USPTO record. Each one links to the unedited conversation.

01TTAB

The Board's own words on fraud, quoted from nine precedential decisions.

I'm preparing an opposition that includes a fraud claim. What exactly does the Board require to prove fraud, and which precedential TTAB decisions set that standard? I especially want any cases on whether a false statement about use, or a bad specimen, was enough.

9 precedential decisionsRead it

03TTAB

It scouted the opposer's litigation record before the opposition was even filed.

My client's BEASTFUEL application (Class 32, energy drinks) just drew an extension of time to oppose from Monster Energy. How seriously should we take it — do they follow through, and what do they actually target?

Take it seriouslyRead it

04Evidence

The opposer claims exclusivity. The register says thirty-seven owners.

Opposer claims exclusive rights in APS. Run a crowded-field search — how many third parties actually hold live APS registrations, and in what classes?

50 live marks · 37 ownersRead it

07Clearance

Clearance that hears the mark the way consumers will.

Run a knockout on LUVLOKK for a dating/relationship app — Classes 9 and 45. Include phonetic equivalents, not just the literal spelling.

CRITICAL CONFLICTRead it

08Office actions

A two-issue office action, read and triaged the day it issued.

Pull the latest office action for application 99882477, SKYLINE JUICE. What is the examiner refusing and requiring, what did they cite, and what are the applicant's realistic options for responding?

§2(d) refusal + JUICE disclaimerRead it

10Docket & analytics

Every Coca-Cola deadline in the next 60 days, in date order.

What does The Coca-Cola Company have coming due at the USPTO in the next 60 days: renewals, declarations of use, office action responses? Put it in date order.

5 live Statement of Use deadlinesRead it
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See all 10 sessions in the Casebook →·Download the PDF

Every Markus response shown is genuine, unscripted product output from a live run (dated on each session), condensed for space, never rewritten. The attorneys and clients in the scenarios are invented, inspired by the kinds of questions practitioners ask; no GleanMark customer's matter or wording is used. Every mark, owner, serial number, registration number, disclaimer finding and ID Manual Term ID was independently re-verified against the USPTO record, and where Markus got something wrong or couldn't confirm it, the session says so.

Markus produces research and first drafts for review by a qualified practitioner. It is a research tool, not legal advice, and not a substitute for an attorney.

Why not just use ChatGPT?
“The benefit that Markus has over Claude or ChatGPT — or Gemini, I use Gemini a lot because my whole firm is built on Google Apps — none of them can search the USPTO like Markus can.”
Jason H. Rosenblum
Jason H. RosenblumManaging Member, Law Office of Jason H. Rosenblum, PLLC
Daily user of general AI tools — and of MarkusRead the story

Why not just use ChatGPT?

You just read the sessions — here's the difference in principle.

Real data, not hallucinations

Markus queries 14M actual USPTO records. ChatGPT generates plausible-sounding answers from training data that may be wrong.

Updated daily, not frozen

USPTO filings from yesterday are searchable today. General LLMs have knowledge cutoffs months or years behind.

Sourced and verifiable

Every answer links back to real serial numbers, proceeding IDs, and owner records you can verify on USPTO.gov.

What you can ask

Before

Search TTAB on USPTO.gov, click through 30 pages, copy-paste into a spreadsheet.

With Markus

> Show TTAB proceedings for Fross Zelnick

Before

Pull TSDR data for two firms, manually tally marks, compare in Excel.

With Markus

> Compare Greenberg Traurig and DLA Piper

Before

Log into each client portal, check renewal dates, compile a status report.

With Markus

> How healthy are my tracked owner portfolios?

Clearance

Find marks similar to BRIGHTVAULTRun a DuPont analysis for ZENITH vs ZENITHACheck brand availability for NOVAPULSE

OA Drafting

Draft an OA response for serial 001-00002What arguments worked for 2(d) refusals in Class 25?Find third-party registrations containing NOVA

TTAB

Show TTAB cases involving Nike as plaintiffWhat are the winning arguments in opposition proceedings?Analyze proceeding 91900002

Firm Intel

Which firms have the highest registration rates?List top clients for Finnegan HendersonCompare filing trends for two firms over 5 yearsSearch attorneys named Patel in Class 9

Portfolio

Show upcoming deadlines for my tracked marksWhich of my marks are at risk?Summarize portfolio health for Acme Corp

Every trademark filed with the USPTO since 1870.
Updated daily.

Last updated: July 2026

14M+ records · 240M+ prosecution events · 650K+ TTAB proceedings

Frequently asked questions

Data handling in depth: Security & Data Protection

What data does Markus have access to?

Markus has real-time access to the full USPTO trademark database: 14M+ trademark records, 240M+ prosecution events, 650K+ TTAB proceedings, and 266K+ attorney profiles. Trademark, prosecution and TTAB records come directly from the USPTO and are refreshed daily. Markus can also run guardrailed web research with source citations — company background, news, common-law use, case law — when a question needs information from outside the register.

Is Markus included in all plans?

Markus is on every paid plan. Starter ($99/mo) includes 5 messages a month; Professional ($249/seat/mo) and Max ($599–$699/seat/mo) are unlimited. The Free plan does not include Markus, and an add-on is available for Free and Starter accounts.

Can Markus file trademarks?

No. Markus is a research and analysis tool, not a filing service. It helps you search, analyze, compare, and monitor trademarks — but actual filings should be done through the USPTO with the guidance of a trademark attorney.

What happens to the data I share with Markus?

It is not used to train AI models. GleanMark does not train or fine-tune models on your content, and its agreements with every AI provider prohibit them from training on it either. Chats you delete are permanently purged after a 24-hour undo window, and raw AI logs kept for troubleshooting are deleted after 90 days. Every AI vendor that processes customer data is listed publicly at gleanmark.com/subprocessors, and the full security overview is at gleanmark.com/security.

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Pricing

Transparent per-seat pricing. Free tier monitors 3 marks. Paid plans from $99/mo.

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Every GleanMark capability in one place — search, monitoring, AI, prosecution, more.

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Markus is unlimited on Professional and Max, and included in the free trial — see pricing or compare against all features. Talk to your trademark database today.

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