17 patents currently held

Held is read from USPTO's recorded assignments; a transfer never recorded there does not appear.

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

The next term ends in Apr 2034. from the record

Free plan: 3 watched companies. Pro: unlimited.

Alerts on its grants, lapses and transfers.

Ending by 2030

Apr 2034

Next term end

Patent families

When these terms end

5 yrs10 yrs20 yrs

Held patents by the year their term ends

20262027202820292030203120322033203420352036 2037 2038 2039 2040 2041 2042204320442045

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

Systems, Devices and Methods for Controlling and Utilizing Smart Windows US 10,488,837

The most cited patent in this portfolio, cited by 73 later US patents, top 5% of utility patents granted in 2019 in our data. Protection runs to 2037. A terminal disclaimer is on file and its reference is not resolved, so no cap is applied and the date may move earlier, never later.

Ends no later than Nov 2037 · Low confidence Also notable

Mullion for a Window US D850,657

The newest of the three, granted 2019. It anchors the portfolio to 2034, later than anything else here.

Ends Jun 2034 · High confidence Also notable

Mullion for a Window US D846,157

The newest of the three, granted 2019. It anchors the portfolio to 2034, later than anything else here.

Ends Apr 2034 · 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 Apr 22, 2027
The maintenance fee for Brickmould Window Trim (US 10,450,790) comes due Apr 22, 2027. Unpaid by Oct 22, 2027, it lapses early.
2 fees due May 7 to 26, 2027 · next May 7
1 fee due Jul 7, 2027
The maintenance fee for Mulling System for a Window Assembly (US 10,526,834) comes due Jul 7, 2027. Unpaid by Jan 7, 2028, it lapses early.
2 fees due Aug 11 to 18, 2027 · next Aug 11
1 fee due Sep 17, 2027
The maintenance fee for Siding Panel Assembly (US 10,590,658) comes due Sep 17, 2027. Unpaid by Mar 17, 2028, 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 13 families, grouped by real patent family and labeled by the earliest filing in each. No technology classification is inferred from titles.

Mulling System for a Window Assembly	2 in force	to Sep 2037
Siding Panel	2 in force	to Jan 2037
Mullion for a Window (2017)	2 in force	to Jul 2036
Mullion for a Window (2017)	2 in force	to Jun 2036
Systems, Devices and Methods for Controlling and Utilizing Smart Windows	1 in force	to Nov 2037

Patents held now

Soonest term end first.

Patent	Title	Status	Expires	Confidence
US D846,157	Mullion for a Window In force Term ends Apr 16, 2034 · High confidence	In force	Term ends Apr 16, 2034	High confidence
US D850,657	Mullion for a Window In force Term ends Jun 4, 2034 · High confidence	In force	Term ends Jun 4, 2034	High confidence
US D923,204	Mullion for a Window In force Term ends Jun 22, 2036 · High confidence	In force	Term ends Jun 22, 2036	High confidence
US D924,439	Mullion for a Window In force Term ends Jul 6, 2036 · High confidence	In force	Term ends Jul 6, 2036	High confidence
US D928,348	Siding Panel In force Term ends Aug 17, 2036 · High confidence	In force	Term ends Aug 17, 2036	High confidence
US D940,911	Siding Panel In force Term ends Jan 11, 2037 · High confidence	In force	Term ends Jan 11, 2037	High confidence
US 10,260,274	Mulling System for a Window Assembly In force Term ends Sep 25, 2037 · High confidence	In force	Term ends Sep 25, 2037	High confidence
US 10,526,834	Mulling System for a Window Assembly In force Term ends Sep 25, 2037 · High confidence	In force	Term ends Sep 25, 2037	High confidence
US 10,488,837	Systems, Devices and Methods for Controlling and Utilizing Smart Windows In force Ends no later than Nov 16, 2037 · Low confidence	In force	Ends no later than Nov 16, 2037	Low confidence
US 10,564,063	System and Method for Detecting Failures in Insulating Glass Units In force Term ends Mar 30, 2038 · High confidence	In force	Term ends Mar 30, 2038	High 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: 5 patents ended · 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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