115 patents currently held
1 more in force is now held by another company
Held is read from USPTO's recorded assignments; a transfer never recorded there does not appear.
36 more records may belong here and await a decision; they are not counted.
The next term ends in Nov 2026. from the record
Free plan: 3 watched companies. Pro: unlimited.
Alerts on its grants, lapses and transfers.
21
Ending by 2030
Nov 2026
Next term end
86
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 Jun 2028 · High confidence
Also notable
Ends Nov 2027 · High confidence
Also notable
Ends Jan 2029 · High confidence
Carbon Fibers Having Improved Strength and Modulus and an Associated Method and Apparatus for Preparing Same
US 7,749,479
Cited by 35 later US patents, top 25% of utility patents granted in 2010 in our data, and renewed at 3 of 3 maintenance windows. Protection runs to 2028.
Composite materials
US 8,980,770
Cited by 40 later US patents, top 25% of utility patents granted in 2015 in our data, and renewed at 3 of 3 maintenance windows. Protection runs to 2027. A terminal disclaimer caps this term to an earlier patent's.
Composite Materials with Blend of Thermoplastic Particles
US 7,754,322
Cited by 49 later US patents, top 25% of utility patents granted in 2010 in our data, and renewed at 3 of 3 maintenance windows. Protection runs to 2029.
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.
- 2 fees due Dec 30, 2026
- 2 fees due Jan 11 to 18, 2027 · next Jan 11
- 2 fees due Feb 4 to 27, 2027 · next Feb 4
- 2 fees due Mar 15 to 19, 2027 · next Mar 15
- 1 fee due Apr 20, 2027The maintenance fee for Diffusion Layer for an Electrochemical Device and Method for Producing Such a Diffusion Layer (US 9,163,317) comes due Apr 20, 2027. Unpaid by Oct 20, 2027, it lapses early.
- 4 fees due May 5 to 17, 2027 · next May 5
- 3 fees due Jun 1 to 17, 2027 · next Jun 1
- 1 fee due Jul 7, 2027The maintenance fee for Veiled Tape with Improved Resistance to Delamination (US 10,525,660) comes due Jul 7, 2027. Unpaid by Jan 7, 2028, it lapses early.
- 1 fee due Aug 11, 2027The maintenance fee for Method For Processing PAEK And Articles Manufactured From The Same (US 10,556,379) comes due Aug 11, 2027. Unpaid by Feb 11, 2028, it lapses early.
- 6 fees due Sep 3 to 30, 2027 · next Sep 3
- 2 fees due Oct 14 to 21, 2027 · next Oct 14
- 1 fee due Nov 10, 2027The maintenance fee for Composite Tape for Use in Tape Laying Machines (US 9,333,678) comes due Nov 10, 2027. Unpaid by May 10, 2028, it lapses early.
Recent changes
- 1 term has ended since Aug 16, 2026
What they patent
The 5 largest of its 86 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 9,677,195 | Carbon Fibers Having Improved Strength and Modulus and an Associated Method and Apparatus for Preparing Same In force · High confidence | In force | High confidence | |
| US 7,592,072 | Bismaleimide Prepreg Systems In force · High confidence | In force | High confidence | |
| US 7,510,390 | Machinable Composite Mold In force · High confidence | In force | High confidence | |
| US 7,972,686 | Composite Materials with Improved Performance held by Hexcel Corporation and Hexcel Composites Limited In force · High confidence | In force | High confidence | |
| US 8,980,770 | Composite materials held by Hexcel Composites, Ltd. In force · High confidence | In force | High confidence | |
| US 7,695,797 | Corrosion Resistant Honeycomb In force · High confidence | In force | High confidence | |
| US 7,749,479 | Carbon Fibers Having Improved Strength and Modulus and an Associated Method and Apparatus for Preparing Same In force · High confidence | In force | High confidence | |
| US 8,034,453 | Composite Materials with Improved Burn Properties In force · High confidence | In force | High confidence | |
| US 8,039,109 | Epoxy Resins with Improved Burn Properties In force · High confidence | In force | High confidence | |
| US 7,749,421 | Helicopter Blade Mandrel In force · High confidence | In force | High confidence |
Also on record, not counted in the 115: 1 patent in force now held by others · 45 patents ended · 13 applications pending · 27 applications abandoned · 1 record of undetermined status. 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.