Term ends May 10, 2027 · High confidence

Computed 20-year base term

Held by GHSP Control Devices, Inc.

Filed Dec 19, 2005 as application 11/311,432 · Granted Apr 14, 2009

Base term plus 507 days of patent term adjustment (USPTO delay)

Today

20 years from filing

Term ends May 10, 2027

2005 2027

Clock starts
Dec 19, 2005

Term ends
May 10, 2027

Granted
Apr 14, 2009

base term patent term adjustment fee events Updated Nov 15, 2026 · includes USPTO assignment & status data published Nov 15, 2026 and grant & fee data published Nov 10, 2026 (weekly) · how we know

507

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 507 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 Dec 19, 2005, when this application, 11/311,432, was filed	Dec 19, 2025	High confidence
Continuity chain	Every parent in the chain resolved	no change	High confidence
Patent term adjustment	+507 days, USPTO patent term adjustment record	May 10, 2027	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	May 10, 2027	High confidence

This family

US 7,518,381	this patent May 2027	May 2027
US 8,324,910	In force Nov 2027	Nov 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
May 2, 2006 Reel 17560, frame 474	Lamborghini, Louis R.; Babington, Thomas E.; Yuen, Benjamin K.	Stoneridge Control Devices, Inc.	Assignment of Assignor's Interest
Nov 12, 2007 Reel 20098, frame 378	Stoneridge, Inc.; Stoneridge Electronics, Inc.; Stoneridge Control Devices, Inc.; Stoneridge-Pollak Limited; Stoneridge Electronics Limited; Stoneridge Far East LLC	National City Business Credit, Inc.	Security Agreement
Oct 7, 2010 Reel 25105, frame 78	Stoneridge Control Devices, Inc.	The Bank of New York Mellon Trust Company, N.A., as Collateral Agent	Security Agreement
Dec 5, 2011 Reel 27328, frame 797	Stoneridge, Inc.; Stoneridge Electronics, Inc.; Stoneridge Control Devices, Inc.	PNC Bank, National Association, as Agent	Amended and Restated Patent Security Agreement
Oct 15, 2014 Reel 33998, frame 222	The Bank of New York Mellon Trust Company, N.A.	Stoneridge Control Devices, Inc.	Release of Security Interest
Nov 14, 2014 Reel 34242, frame 176	Stoneridge, Inc.; Stoneridge Electronics, Inc.; Stoneridge Control Devices, Inc.	Pnc Bank, National Association	Security Interest
Jun 12, 2019 Reel 49451, frame 357	Stoneridge, Inc.; Stoneridge Electronics, Inc.; Stoneridge Control Devices, Inc.; Stoneridge Aftermarket, Inc.; Orlaco Inc.; SRI Holdings US LLC; SRI Delaware Holdings LLC	Pnc Bank, National Association	Security Interest
Nov 2, 2023 Reel 65447, frame 664	Stoneridge, Inc.; Stoneridge Electronics, Inc.; Stoneridge Control Devices, Inc.; Stoneridge Fleet Solutions, Inc.; SRI Holdings US LLC; SRI Delaware Holdings LLC	PNC Bank, National Association, as Agent	Security Interest
Oct 16, 2024 Reel 69175, frame 944	PNC Bank, National Association, as Agent	Stoneridge, Inc.; Stoneridge Electronics, Inc.; Stoneridge Control Devices, Inc.	Release of Security Interest
Oct 16, 2024 reel/frame not recorded	PNC Bank, National Association, as Agent	Stoneridge, Inc.	Release of Security Interest
Oct 16, 2024 reel/frame not recorded	PNC Bank, National Association, as Agent	Stoneridge Electronics, Inc.	Release of Security Interest
Oct 16, 2024 reel/frame not recorded	PNC Bank, National Association, as Agent	Stoneridge Control Devices, Inc.	Release of Security Interest
Feb 6, 2026 Reel 74714, frame 699	PNC Bank, National Association, as Agent	Stoneridge Control Devices, Inc.	Release of Security Interest
Aug 6, 2026 Reel 76114, frame 744	Stoneridge Control Devices, Inc.	GHSP Control Devices, Inc.	Change of Name

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

May 2027

Term ends May 10, 2027. No further fees fall due before then

Note

The 507 days of patent term adjustment (USPTO delay) are read from the USPTO record, not recalculated by us

Citations

109

later US patents cite this one

That is top 10% 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.

Touch Sensor System and Method