352 patents currently held
278 more in force are now held by other companies
Held is read from USPTO's recorded assignments; a transfer never recorded there does not appear.
32 more records may belong here and await a decision; they are not counted.
The next term ends in Nov 2026. from the record
Of the 278 now held by other companies, 112 name Sitime Corporation as their current owner, and 166 more name another party. Each row says which.
Free plan: 3 watched companies. Pro: unlimited.
Alerts on its grants, lapses and transfers.
81
Ending by 2030
Nov 2026
Next term end
301
Patent families
When these terms end
Held patents by the year their term ends
notable patents
fee due within 90 days
all others
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
Notable: the highest-ranked patents in this portfolio by citations and family size. Fee due within 90 days: a maintenance fee is due within 90 days of when this page was computed and not yet paid.
Notable patents
Ranked by citations and family size, against patents of the same kind granted the same year. How we rank
Notable
Ends Mar 2030 · High confidence
Also notable
Ends Feb 2033 · High confidence
Also notable
Ends Dec 2032 · High confidence
Compression of Baseband Signals in Base Transceiver Systems
US 8,005,152
Cited by 149 later US patents, top 5% of utility patents granted in 2011 in our data, and renewed at 3 of 3 maintenance windows. Protection runs to 2030.
OFDM Signal Processing in a Base Transceiver System
US 8,989,088
Cited by 181 later US patents, top 5% of utility patents granted in 2015 in our data, and renewed at 3 of 3 maintenance windows. Protection runs to 2033. A terminal disclaimer caps this term to an earlier patent's.
Transmission of Multiprotocol Data in a Distributed Antenna System
US 8,649,388
Cited by 172 later US patents, top 5% of utility patents granted in 2014 in our data, and renewed at 3 of 3 maintenance windows. Protection runs to 2032.
Formerly held, still cited
Notable
Ends May 2027 · Medium confidence
Cited by 35 later US patents, top 25% of utility patents granted in 2012 in our data, and renewed at 3 of 3 maintenance windows. Protection runs to 2027.
now held by Sitime Corporation
Fee deadlines
Maintenance fees fall due 3.5, 7.5 and 11.5 years after grant. A missed fee ends a patent at the end of the six month grace period that follows, not on the due date.
- 1 fee due Nov 28, 2026The maintenance fee for High Signal Voltage Tolerance in Single-Ended Memory Interface (US 10,304,520) comes due Nov 28, 2026. Unpaid by May 28, 2027, it lapses early.
- 11 fees due Dec 4 to 20, 2026 · next Dec 4
- 9 fees due Jan 2 to 30, 2027 · next Jan 2
- 7 fees due Feb 13 to 27, 2027 · next Feb 13
- 7 fees due Mar 1 to 29, 2027 · next Mar 1
- 9 fees due Apr 1 to 20, 2027 · next Apr 1
- 6 fees due May 5 to 19, 2027 · next May 5
- 5 fees due Jun 1 to 30, 2027 · next Jun 1
- 2 fees due Jul 19, 2027
- 4 fees due Aug 4 to 20, 2027 · next Aug 4
- 8 fees due Sep 1 to 30, 2027 · next Sep 1
- 5 fees due Oct 5 to 28, 2027 · next Oct 5
- 2 fees due Nov 3 to 10, 2027 · next Nov 3
Recent changes
- Oct 4Assignment recorded on US 8,022,738: Jing, Tao to Integrated Device Technology, Inc. Recorded Oct 4, 2026, executed Jun 6, 2007. Conveyance as recorded: Assignment of Assignor's Interest. A recorded assignment is a filed document, not a statement of current ownership. Reel 76251, frame 200.
- Oct 2Assignment recorded on US 8,785,229: Pan, Wanling to Integrated Device Technology, Inc. Recorded Oct 2, 2026, executed Feb 24, 2011. Conveyance as recorded: Assignment of Assignor's Interest. A recorded assignment is a filed document, not a statement of current ownership. Reel 76237, frame 506.
- 14 terms have ended since Aug 16, 2026
What they patent
The 5 largest of its 301 families, grouped by real patent family and labeled by the earliest filing in each. No technology classification is inferred from titles.
Patents held now
Soonest term end first.
| Patent | Title | Status | Expires | Confidence |
|---|---|---|---|---|
| US 7,450,184 | Circuits and Methods for Detecting 2:2 Encoded Video and Systems Utilizing the Same In force · Medium confidence | In force | Medium confidence | |
| US 7,414,671 | Systems and Methods for Display Object Edge Detection and Pixel Data Interpolation in Video Processing Systems In force · High confidence | In force | High confidence | |
| US 7,472,322 | On-Chip Interface Trap Characterization and Monitoring In force · High confidence | In force | High confidence | |
| US 7,474,011 | Method for Improved Single Event Latch Up Resistance in an Integrated Circuit In force · High confidence | In force | High confidence | |
| US 7,750,618 | System and Method for Testing a Clock Circuit In force · High confidence | In force | High confidence | |
| US 7,809,871 | Common Access Ring System In force · High confidence | In force | High confidence | |
| US 7,814,248 | Common Access Ring/Sub-Ring System In force · High confidence | In force | High confidence | |
| US 8,022,738 | Apparatus and Method for Detecting the Loss of an Input Clock Signal for a Phase-Locked Loop held by Sitime Corporation In force · High confidence | In force | High confidence | |
| US 7,636,367 | Method and Apparatus for Overbooking on Fifo Memory In force · High confidence | In force | High confidence | |
| US 7,898,288 | Input Termination for Delay Locked Loop Feedback with Impedance Matching In force · High confidence | In force | High confidence |
Also on record, not counted in the 352: 278 patents in force now held by others · 445 patents ended · 1 application pending · 102 applications abandoned. List them
Sources and methods
Compiled from USPTO application file histories, grants and recorded assignments, with the company's own names reviewed by hand. How this record was built
Portfolio grouped automatically from ownership conveyances to the names matched to this company, usually every name that begins with its own, so it counts patents an affiliate holds; each list row names the holder of record. Security interests are excluded and ambiguous records are not reviewed by hand.
Fee due within 90 days marks a patent with a maintenance fee due within 90 days of the date this page was computed and not yet recorded paid, so it can end earlier than the bar shows. A fee left unpaid ends the patent at the close of the six month grace period that follows its due date, not on the due date itself. It is not a prediction that the fee will be missed.
Computed patent terms end on the dates shown. Related patents and pending applications may cover overlapping subject matter.