Collateral for a security interest recorded Jul 6, 2022 (Barclays Bank PLC).

Term ends Oct 1, 2028 · High confidence

Computed 20-year base term

Held by Watchguard Technologies, Inc.

Filed Mar 9, 2006 as application 11/370,932 · Granted Dec 1, 2009

Base term plus 937 days of patent term adjustment (USPTO delay)

Today

20 years from filing

Term ends Oct 1, 2028

2006 2028

Clock starts
Mar 9, 2006

Term ends
Oct 1, 2028

Granted
Dec 1, 2009

base term patent term adjustment fee events Updated Nov 14, 2026 · includes USPTO assignment & status data published Nov 14, 2026 and grant & fee data published Nov 10, 2026 (weekly) · how we know

937

Days of term adjustment

Read from the USPTO patent term adjustment record, not recalculated here.

None

Terminal disclaimer

No disclaimer on this record.

3 of 3

Maintenance fees paid

Three maintenance fees fall due, at 3.5, 7.5 and 11.5 years from grant. This counts the ones the record shows paid.

Family applications on record here

Applications sharing this one's continuity chain whose file history this site holds. The family may have others.

This patent's term runs 937 days past its 20-year base term on prosecution delay. All three maintenance fees are recorded paid; no more fees are due. Confidence: High. from the record

How we calculated this date

One row per rule, each showing its own input and what it did to the date. A step we could not verify says so instead of resolving itself.

Step	Input	Date after this step	Confidence
Base term, 20 years from filing	Clock starts Mar 9, 2006, when this application, 11/370,932, was filed	Mar 9, 2026	High confidence
Continuity chain	Every parent in the chain resolved	no change	High confidence
Patent term adjustment	+937 days, USPTO patent term adjustment record	Oct 1, 2028	High confidence
Terminal disclaimer cap	None on record	no cap applied	High confidence
Patent term extension	None on file	no change	High confidence
Fee events	3 of 3 maintenance fees paid	In force	High confidence
Computed term end	The steps above, in order	Oct 1, 2028	High confidence

This family

US 7,627,641	this patent Oct 2028	Oct 2028
US 8,572,190	In force Jul 2027	Jul 2027

The applications whose file history this site holds. The family may have others.

Assignments

Assignment documents as recorded at the USPTO, oldest first, with the reel and frame each was recorded at. A recorded assignment is a filed document, not a statement of current ownership, and the absence of a later one is not evidence that the last one still stands.

Recorded	Assignor	Assignee	Conveyance
Feb 8, 2007 Reel 18870, frame 668	Alsop, John; Gabe, Christopher; Osborne, Robert Anthony	Borderware Technologies Inc.	Assignment of Assignor's Interest
Mar 16, 2007 Reel 19024, frame 560	Borderware Technologies Inc.	WF Fund III Limited Partnership	Confirmation of Security Interest in Intellectual Property
Aug 13, 2009 Reel 23098, frame 771	Watchguard Technologies, Inc.; Gladiator Corporation	Silicon Valley Bank	Security Agreement
Aug 14, 2009 Reel 23100, frame 537	Borderware Technologies, Inc.	Watchguard Technologies, Inc.	Assignment of Assignor's Interest
Jul 2, 2012 Reel 28477, frame 268	Silicon Valley Bank	Watchguard Technologies, Inc.; Gladiator Corporation	Release of Security Interest
Jul 2, 2012 Reel 28488, frame 917	Watchguard Technologies, Inc.	Bank Of Montreal, As Administrative Agent	Security Agreement
Jul 2, 2012 reel/frame not recorded	Silicon Valley Bank	Watchguard Technologies, Inc.	Release of Security Interest
Jul 2, 2012 reel/frame not recorded	Silicon Valley Bank	Gladiator Corporation	Release of Security Interest
Jun 30, 2015 Reel 35995, frame 466	Bank Of Montreal, As Administrative Agent	Watchguard Technologies, Inc.	Release of Security Interest
Jun 30, 2015 Reel 36038, frame 455	Watchguard Technologies, Inc.	Goldman Sachs Specialty Lending Group, L.P., as Collateral Agent	Security Interest
Aug 28, 2019 Reel 50195, frame 673	Goldman Sachs Specialty Lending Group. L.P.	Goldman Sachs Specialty Lending Group. L.P.	Change of Address for Assignee
May 27, 2020 Reel 52763, frame 469	WF Fund III Limited Partnership	Borderware Technologies Inc.	Court Order
Jun 1, 2020 Reel 52801, frame 422	Goldman Sachs Specialty Lending Group, L.P.	Watchguard Technologies, Inc.	Release of Security Interest
Jun 1, 2020 Reel 52801, frame 668	Watchguard Technologies, Inc.	Goldman Sachs Bank USA	Security Interest
Jul 6, 2022 Reel 60406, frame 682	Watchguard Technologies, Inc.	Barclays Bank PLC, as Collateral Agent	Security Interest
Jul 6, 2022 Reel 60406, frame 720	Watchguard Technologies, Inc.	Goldman Sachs Specialty Lending Group, L.P., as Collateral Agent	Security Interest
Jul 6, 2022 Reel 60406, frame 751	Goldman Sachs Bank USA, as Collateral Agent	Watchguard Technologies, Inc.	Release of Security Interest

Sources

Google Patents · The patent document at USPTO · Assignment records at USPTO

USPTO account required: This application in Patent Center · USPTO's maintenance fee lookup

Maintenance fee events come from USPTO's own fee records. Its fee lookup asks for the patent number and the application number.

Free plan: 3 watched companies. Pro: unlimited.

Alerts on its grants, lapses and transfers.

What's changing

Oct 2028

Term ends Oct 1, 2028. No further fees fall due before then

Note

The 937 days of patent term adjustment (USPTO delay) are read from the USPTO record, not recalculated by us

Citations

later US patents cite this one

That is top 25% of utility patents granted in 2009 in our data, the only group it is compared against. How we rank

Every date shows its work: the base term, any term adjustment or extension, any disclaimer cap, and the maintenance fee record, each with a confidence tier. How this record was built

Computed patent terms end on the dates shown. Related patents and pending applications may cover overlapping subject matter.

In force means the term is running and no lapse is on record. It is not a finding that the patent is valid.

Method and System for Recognizing Desired Email