140 patents currently held

15 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.

3 more records may belong here and await a decision; they are not counted.

The next term ends in Aug 2028. from the record

Free plan: 3 watched companies. Pro: unlimited.

Alerts on its grants, lapses and transfers.

Ending by 2030

Aug 2028

Next term end

Patent families

When these terms end

5 yrs10 yrs20 yrs

Held patents by the year their term ends

202620272028 2029 2030 2031 2032 2033 2034 2035 2036 2037 2038 2039 2040 2041 2042 2043 20442045

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

Electromagnetic Relay and Coil Terminal US 10,242,829

Cited by 38 later US patents, top 10% of utility patents granted in 2019 in our data, and renewed at 2 of 3 maintenance windows. Protection runs to 2035.

Ends May 2035 · High confidence Also notable

Connector US 9,608,388

Cited by 29 later US patents, top 25% of utility patents granted in 2017 in our data, and renewed at every maintenance window due so far. Protection runs to 2036.

Ends Feb 2036 · High confidence Also notable

Electromagnetic Relay US 10,636,602

A family of 60 related applications built on the 2020 grant. Protection runs to 2038.

Ends Mar 2038 · High confidence

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 16, 2026
The maintenance fee for Detection Device (US 11,650,283) comes due Nov 16, 2026. Unpaid by May 17, 2027, it lapses early.
3 fees due Dec 23 to 27, 2026 · next Dec 23
4 fees due Jan 7 to 14, 2027 · next Jan 7
2 fees due Feb 20 to 28, 2027 · next Feb 20
4 fees due Mar 8 to 24, 2027 · next Mar 8
7 fees due Apr 8 to 24, 2027 · next Apr 8
2 fees due May 7 to 17, 2027 · next May 7
2 fees due Jun 1 to 24, 2027 · next Jun 1
4 fees due Jul 2 to 28, 2027 · next Jul 2
3 fees due Aug 6 to 25, 2027 · next Aug 6
3 fees due Sep 22 to 29, 2027 · next Sep 22
4 fees due Oct 2 to 28, 2027 · next Oct 2

Which patents, and when each one lapses · Pro

Recent changes

5 terms have ended since Aug 16, 2026

What they patent

The 5 largest of its 67 families, grouped by real patent family and labeled by the earliest filing in each. No technology classification is inferred from titles.

Printer (2014)	17 in force	to May 2035
Electromagnetic Relay	12 in force	to Jan 2041
Printer (2017)	12 in force	to Mar 2038
Sheet Cassette	9 in force	to May 2040
Wireless Module, Electronic Module, and Measuring Method	6 in force	to Sep 2036

Patents held now

Soonest term end first.

Patent	Title	Status	Expires	Confidence
US 7,679,476	Polarized Electromagnetic Relay and Coil Assembly In force Term ends Aug 31, 2028 · High confidence	In force	Term ends Aug 31, 2028	High confidence
US 7,859,371	Electromagnetic Relay In force Term ends Nov 7, 2028 · High confidence	In force	Term ends Nov 7, 2028	High confidence
US 8,193,881	Relay In force Term ends Mar 13, 2029 · High confidence	In force	Term ends Mar 13, 2029	High confidence
US 7,861,023	Multiuser KVM Switch In force Term ends Apr 11, 2029 · High confidence	In force	Term ends Apr 11, 2029	High confidence
US 8,008,999	Electromagnetic Relay In force Term ends Mar 5, 2030 · High confidence	In force	Term ends Mar 5, 2030	High confidence
US 8,411,119	Printer Module Including Movable Blade Module and Fixed Blade Module In force Term ends Aug 6, 2030 · High confidence	In force	Term ends Aug 6, 2030	High confidence
US 8,179,411	Printer Module and Electronic Apparatus In force Term ends Sep 1, 2030 · High confidence	In force	Term ends Sep 1, 2030	High confidence
US 8,299,382	Key Switch and Keyboard In force Term ends Nov 18, 2030 · High confidence	In force	Term ends Nov 18, 2030	High confidence
US 8,207,465	Key Switch Unit In force Term ends Jan 13, 2031 · High confidence	In force	Term ends Jan 13, 2031	High confidence
US 9,905,927	Antenna Device, Circuit Board and Memory Card In force Term ends Mar 12, 2032 · High confidence	In force	Term ends Mar 12, 2032	High confidence

10 of 140 patents shown.

Pro members see all 140.

Pro members: see all 140 patents

Also on record, not counted in the 140: 15 patents in force now held by others · 638 patents ended · 2 applications pending · 143 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.

Export every term end as CSV · Pro

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