13 patents currently held

3 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.

The next term ends in Jan 2033. from the record

Free plan: 3 watched companies. Pro: unlimited.

Alerts on its grants, lapses and transfers.

Ending by 2030

Jan 2033

Next term end

Patent families

When these terms end

5 yrs10 yrs20 yrs

Held patents by the year their term ends

202620272028202920302031203220332034203520362037 2038203920402041 2042204320442045

notable patents all others 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

Notable: the highest-ranked patents in this portfolio by citations and family size.

Notable patents

Ranked by citations and family size, against patents of the same kind granted the same year. How we rank

Notable

Bis-Schiff Base Compositions and Formulations US 11,572,351

Granted 2023. Computed term ends 2037.

Ends Feb 2037 · High confidence Also notable

Bis-Schiff-Base Thermosetting Elastomers US 10,662,329

Granted 2020. Computed term ends 2038.

Ends Sep 2038 · High confidence Also notable

High Temperature Chemical Compositions and Composites Produced Therefrom US 10,370,508

The earliest of the three still in force, granted 2019 and renewed since. Its term ends first, in 2037.

Ends Aug 2037 · High confidence

Formerly held, still cited

Notable

Multistage Thermal Trigger US 10,677,576

The earliest of the three still in force, granted 2020 and renewed since. Its term ends first, in 2038.

now held by Karman Space & Defense LLC

Ends May 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 Feb 6, 2027
The maintenance fee for High Temperature Chemical Compositions and Composites Produced Therefrom (US 10,370,508) comes due Feb 6, 2027. Unpaid by Aug 6, 2027, it lapses early.
1 fee due Jun 10, 2027
The maintenance fee for Bis-Schiff Base Compositions and Formulations (US 10,501,578) comes due Jun 10, 2027. Unpaid by Dec 10, 2027, it lapses early.

Which patents, and when each one lapses · Pro

Recent changes

Nothing was recorded against this company's patents in the last 90 days.

What they patent

The 3 largest of its 9 families, grouped by real patent family and labeled by the earliest filing in each. No technology classification is inferred from titles.

Bis-Schiff Base Compositions and Formulations	3 in force	to Feb 2037
Method of Making Carbonized Composites	2 in force	to Sep 2041
Bis-Schiff-Base Thermosetting Elastomers	2 in force	to Sep 2038

Patents held now

Soonest term end first.

Patent	Title	Status	Expires	Confidence
US 8,939,672	Retention, Release, and Separation Device, System, and Method In force Term ends Jan 8, 2033 · High confidence	In force	Term ends Jan 8, 2033	High confidence
US 10,501,578	Bis-Schiff Base Compositions and Formulations In force Term ends Feb 23, 2037 · High confidence	In force	Term ends Feb 23, 2037	High confidence
US 11,028,194	Bis-Schiff Base Compositions and Formulations In force Term ends Feb 23, 2037 · High confidence	In force	Term ends Feb 23, 2037	High confidence
US 11,572,351	Bis-Schiff Base Compositions and Formulations In force Term ends Feb 25, 2037 · High confidence	In force	Term ends Feb 25, 2037	High confidence
US 12,297,334	Imine-Based Reactive Diluent for Composite Manufacture In force Term ends Feb 25, 2037 · High confidence	In force	Term ends Feb 25, 2037	High confidence
US 10,370,508	High Temperature Chemical Compositions and Composites Produced Therefrom In force Term ends Aug 4, 2037 · High confidence	In force	Term ends Aug 4, 2037	High confidence
US 10,982,095	Bis-Schiff-Base Thermosetting Elastomers In force Term ends Jun 26, 2038 · High confidence	In force	Term ends Jun 26, 2038	High confidence
US 10,662,329	Bis-Schiff-Base Thermosetting Elastomers In force Term ends Sep 1, 2038 · High confidence	In force	Term ends Sep 1, 2038	High confidence
US 11,440,851	Method of Making Carbon Matrix Composite from High Temperature Polymer Matrix Fiber-Reinforced Composites In force Term ends Jun 18, 2041 · High confidence	In force	Term ends Jun 18, 2041	High confidence
US 12,410,292	Method of Making Carbonized Composites In force Term ends Aug 18, 2041 · High confidence	In force	Term ends Aug 18, 2041	High confidence

10 of 13 patents shown.

Pro members see all 13.

Pro members: see all 13 patents

Also on record, not counted in the 13: 3 patents in force now held by others · 3 patents ended · 1 application 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.

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

Systima Technologies, Inc.