Litigation

Microsoft Corporation v. X1 Discovery, Inc.

Pending - Instituted

IPR2025-00253

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Court: Patent Trial and Appeal Board (PTAB)

Patents at issue (1)

7370035 PTAB: final decision

Plaintiffs (1)

π Microsoft Corporation

Defendants (1)

Δ X1 Discovery, Inc.

Summary

Microsoft Corporation, as Petitioner, challenged claims 1-20 of US patent 7370035, owned by X1 Discovery, Inc., in an Inter Partes Review at the Patent Trial and Appeal Board. The IPR has been instituted and is currently pending.

Case overview & background

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Key legal developments & outcome

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Plaintiff representatives

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Defendant representatives

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Record id: 7370035-ipr2025-00253 · edit in Admin

Further reading

The patent litigation lifecycle
Most patent cases never reach trial. A defendant who understands the lifecycle makes better decisions about when to fight, when to settle, and when to invest in IPR — instead of overspending on whatever phase they happen to be in.
What it costs to get a patent (AIPLA Economic Survey)
A US utility patent costs a median of $8,000-$12,000 in attorney fees to draft and file, depending on the technology — before USPTO fees, before drawings, and before the first office action. Here's the full bill, and why it's a rounding error next to enforcing the thing.
Lumen View v. FindTheBest (2013-2016): when a defendant fought back, the troll paid
Same patent. Same plaintiff playbook. Different outcome — because the defendant had the resources and the will to fight. Most don't. That's the asymmetry this site is built to fix.
The first 30 days after a patent infringement complaint
Most defendants spend the first 30 days reacting. The defendants who do well spend it sequencing — because every move you make in month one shapes the budget, leverage, and exit options for the next two years.
The Patent Scam (2017): a documentary on the patent troll industry
Most people learn about patent trolls only when they get sued by one. The Patent Scam does the work of making the problem concrete before that happens.

All resources →