Litigation

Google LLC et al. v. Headwater Research LLC

final written decision; all challenged claims unpatentable

IPR2024-00942

Auto-generating section 1 of 5: Case overview & background…

Each section takes ~30-60s with web-search grounding. Keep this tab open — sections will fill in below as they complete.

Court: USPTO Patent Trial and Appeal Board
Filed: 2024-06-07
Terminated: 2025-10-01

Patents at issue (1)

Plaintiffs (8)

Defendants (1)

Δ Headwater Research LLC

Summary

Google LLC and additional real parties-in-interest petitioned for inter partes review of claims 1-23, 26, 41-60, 63, 64, 155-157, and 160-171 of the '541 patent. The Board's Oct. 1, 2025 Final Written Decision, combined with IPR2024-00943, held all challenged claims unpatentable. Headwater did not appeal.

Case overview & background

Plain-language overview of the case: parties, accused product, patents at issue, and why the suit matters.

Not yet generated. Click Generate to run the LLM with web-search grounding (~30-60s).

Key legal developments & outcome

Major rulings, motions, claim construction, settlements, and the present posture or final disposition.

Not yet generated. Click Generate to run the LLM with web-search grounding (~30-60s).

In the news

What the press has reported about this case, summarized with links to the source articles.

Not yet generated. Click Generate to run the LLM with web-search grounding (~30-60s).

Plaintiff representatives

Counsel of record for the plaintiff(s): attorneys, firms, and roles (lead counsel, of counsel, local counsel).

Not yet generated. Click Generate to run the LLM with web-search grounding (~30-60s).

Defendant representatives

Counsel of record for the defendant(s): attorneys, firms, and roles (lead counsel, of counsel, local counsel).

Not yet generated. Click Generate to run the LLM with web-search grounding (~30-60s).

Record id: 8589541-ipr2024-00942 · edit in Admin

Further reading

Patent term and expiration
Patents don't last forever. They don't even reliably last 20 years. The expiration date that actually matters depends on the earliest filing date, the maintenance schedule, and any USPTO or FDA delays the patent owner can claim back.
What patent litigation actually costs (AIPLA Economic Survey)
It costs a few hundred dollars to file a patent complaint and a median of $1.5M-$3.2M to defend one through trial. That gap isn't a side effect of patent litigation — for a troll, it is the entire business model.
How to read a patent claim chart
The claim chart is where the plaintiff's case actually lives. The complaint is a pitch deck; the chart is the homework — and most patent troll homework doesn't survive a careful read.
The America Invents Act (2011)
The AIA was the structural reform that gave defendants modern tools — IPR, broader prior art, joinder limits. The unfinished work is cost: AIA didn't make defense free, it made defense possible.
Joint defense groups: economics, formation, and the privilege framework
An NPE sues twenty defendants on one patent. Solo, each faces $3-5M in defense costs. Pooled into a joint defense group, the per-defendant number drops to $200-500K. The economics only work if the privilege framework is set up correctly.

All resources →