17 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.

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

The next term ends in Jan 2030. from the record

Free plan: 3 watched companies. Pro: unlimited.

Alerts on its grants, lapses and transfers.

Ending by 2030

Jan 2030

Next term end

Patent families

When these terms end

5 yrs10 yrs20 yrs

Held patents by the year their term ends

20262027202820292030 203120322033203420352036 2037 2038 2039 204020412042 2043 20442045

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

Structural Insulated Panel System US 8,286,399

The most cited patent in this portfolio, cited by 41 later US patents, top 25% of utility patents granted in 2012 in our data. Protection runs to 2030.

Ends Mar 2030 · High confidence Also notable

Insulated Structural Members for Insulated Panels and a Method of Making Same US 10,246,873

Cited by 13 later US patents, top 25% of utility patents granted in 2019 in our data, and renewed at 2 of 3 maintenance windows. Protection runs to 2037.

Ends Nov 2037 · High confidence Also notable

System and Method for Affixing Insulated Panels US 10,494,813

Cited by 12 later US patents, top 25% of utility patents granted in 2019 in our data. Protection runs to 2036.

Ends Aug 2036 · 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 Jun 3, 2027
The maintenance fee for System and Method for Affixing Insulated Panels (US 10,494,813) comes due Jun 3, 2027. Unpaid by Dec 3, 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 5 largest of its 15 families, grouped by real patent family and labeled by the earliest filing in each. No technology classification is inferred from titles.

R125 and R143A Blend Refrigeration System with Internal R32 Blend Subcooling	2 in force	to Jun 2031
Structural Insulated Panel System	2 in force	to Mar 2030
Low GWP Cascade Refrigeration System	1 in force	to Jan 2044
Accessible Cooling Environment	1 in force	to Dec 2042
Open-Walled, Temperature Controlled Environment	1 in force	to May 2042

Patents held now

Soonest term end first.

Patent	Title	Status	Expires	Confidence
US 8,875,462	Structural Insulated Panel System In force Term ends Jan 20, 2030 · High confidence	In force	Term ends Jan 20, 2030	High confidence
US 8,286,399	Structural Insulated Panel System In force (reinstated) Term ends Mar 28, 2030 · High confidence	In force (reinstated)	Term ends Mar 28, 2030	High confidence
US 8,291,723	R125 and R143A Blend Refrigeration System with Internal R32 Blend Subcooling In force Term ends Jun 7, 2031 · High confidence	In force	Term ends Jun 7, 2031	High confidence
US 9,482,443	HFC Blend Refrigeration System with Internal R32 Blend Subcooling In force Term ends Jun 7, 2031 · High confidence	In force	Term ends Jun 7, 2031	High confidence
US 10,494,813	System and Method for Affixing Insulated Panels In force Term ends Aug 26, 2036 · High confidence	In force	Term ends Aug 26, 2036	High confidence
US D956,112	Open-Walled Cooling Environment In force Term ends Jun 28, 2037 · High confidence	In force	Term ends Jun 28, 2037	High confidence
US D956,113	Open-Walled Cooling Environment In force Term ends Jun 28, 2037 · High confidence	In force	Term ends Jun 28, 2037	High confidence
US 10,246,873	Insulated Structural Members for Insulated Panels and a Method of Making Same In force Term ends Nov 16, 2037 · High confidence	In force	Term ends Nov 16, 2037	High confidence
US D987,120	Insulated Frame Member and Backer Therefor In force Term ends May 23, 2038 · High confidence	In force	Term ends May 23, 2038	High confidence
US D1,007,713	Frame Member with Backer In force Ends no later than Dec 12, 2038 · Medium confidence	In force	Ends no later than Dec 12, 2038	Medium confidence

10 of 17 patents shown.

Pro members see all 17.

Pro members: see all 17 patents

Also on record, not counted in the 17: 1 patent in force now held by others · 1 patent ended · 5 applications pending · 6 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.

Computed patent terms end on the dates shown. Related patents and pending applications may cover overlapping subject matter.

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