22 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 Nov 2026. from the record

Free plan: 3 watched companies. Pro: unlimited.

Alerts on its grants, lapses and transfers.

Ending by 2030

Nov 2026

Next term end

Patent families

When these terms end

5 yrs10 yrs20 yrs

Held patents by the year their term ends

2026202720282029203020312032 2033 2034 2035 2036203720382039204020412042204320442045

notable patents 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.

Notable patents

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

Notable

Cooperating Tank and Rack Superstructure US 10,696,154

Cited by 26 later US patents, top 10% of utility patents granted in 2020 in our data. Protection runs to 2036.

Ends May 2036 · Medium confidence Also notable

Breather Layer for Exhausting Permeate from Pressure Vessels US 9,205,373

Cited by 23 later US patents, top 25% of utility patents granted in 2015 in our data, and renewed at every maintenance window due so far. Protection runs to 2032.

Ends Jun 2032 · High confidence Also notable

Aerodynamic and Adjustable Efficient Back of Cab Fuel Tank Housing US 10,124,665

Cited by 14 later US patents, top 25% of utility patents granted in 2018 in our data, and renewed at 2 of 3 maintenance windows. Protection runs to 2035.

Ends Jun 2035 · Medium 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 May 28, 2027
The maintenance fee for Flex Plate Mount for High Pressure Tank (US 11,828,418) comes due May 28, 2027. Unpaid by Nov 29, 2027, it lapses early.
1 fee due Jun 8, 2027
The maintenance fee for Breather Layer for Exhausting Permeate from Pressure Vessels (US 9,205,373) comes due Jun 8, 2027. Unpaid by Dec 8, 2027, it lapses early.
2 fees due Jul 12 to 14, 2027 · next Jul 12

Which patents, and when each one lapses · Pro

Recent changes

1 term has ended since Aug 16, 2026

What they patent

The 5 largest of its 17 families, grouped by real patent family and labeled by the earliest filing in each. No technology classification is inferred from titles.

Flex Plate Mount for High Pressure Tank	2 in force	to Aug 2040
Composite Pressure Tank Identification and Tracking	2 in force	to Oct 2034
Concentric Shells for Compressed Gas Storage	2 in force	to May 2034
Adapterless Closure Assembly for Composite Pressure Vessels	2 in force	to Jun 2033
Breather Layer for Exhausting Permeate from Pressure Vessels	2 in force	to Apr 2033

Patents held now

Soonest term end first.

Patent	Title	Status	Expires	Confidence
US 7,837,054	Tank Seal In force (reinstated) Term ends Nov 17, 2026 · High confidence	In force (reinstated)	Term ends Nov 17, 2026	High confidence
US 7,868,775	Safety Warning and Shutdown Device and Method for Hydrogen Storage Containers In force Term ends May 23, 2028 · High confidence	In force	Term ends May 23, 2028	High confidence
US 8,517,206	High Pressure Storage Vessel In force Term ends Jul 29, 2030 · High confidence	In force	Term ends Jul 29, 2030	High confidence
US 9,205,373	Breather Layer for Exhausting Permeate from Pressure Vessels In force Term ends Jun 12, 2032 · High confidence	In force	Term ends Jun 12, 2032	High confidence
US 9,618,157	Concentric Shells for Compressed Gas Storage In force Term ends Dec 14, 2032 · High confidence	In force	Term ends Dec 14, 2032	High confidence
US 10,168,002	Breather Layer for Exhausting Permeate from Pressure Vessels In force Term ends Apr 14, 2033 · High confidence	In force	Term ends Apr 14, 2033	High confidence
US 8,881,932	Adapterless Closure Assembly for Composite Pressure Vessels In force Term ends Jun 25, 2033 · High confidence	In force	Term ends Jun 25, 2033	High confidence
US 9,568,150	Method of Fabricating a Pressurized-Gas Storage Assembly In force Term ends Jun 25, 2033 · High confidence	In force	Term ends Jun 25, 2033	High confidence
US 9,234,625	Concentric Shells for Compressed Gas Storage In force Term ends May 6, 2034 · High confidence	In force	Term ends May 6, 2034	High confidence
US 9,909,535	Non-Slip Fuel Tank Bracket In force Term ends May 28, 2034 · High confidence	In force	Term ends May 28, 2034	High confidence

10 of 22 patents shown.

Pro members see all 22.

Pro members: see all 22 patents

Also on record, not counted in the 22: 3 patents in force now held by others · 3 patents ended · 1 application pending · 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

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