117 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.

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

The next term ends in Mar 2027. from the record

Free plan: 3 watched companies. Pro: unlimited.

Alerts on its grants, lapses and transfers.

Ending by 2030

Mar 2027

Next term end

Patent families

When these terms end

5 yrs10 yrs20 yrs

Held patents by the year their term ends

20262027 2028 2029 2030 2031 2032 2033 203420352036 2037 2038 2039 2040 2041 2042 2043 20442045

notable patents fee due within 90 days 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. 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

Status Monitoring System for a Fenestration Unit US 8,269,627

The most cited patent in this portfolio, cited by 109 later US patents, top 5% of utility patents granted in 2012 in our data. Protection runs to 2030.

Ends Jan 2030 · High confidence Also notable

Laminated Glass Retention System US 9,163,449

Cited by 46 later US patents, top 10% of utility patents granted in 2015 in our data, and renewed at every maintenance window due so far. Protection runs to 2033.

Ends Jul 2033 · High confidence Also notable

Compound Fenestration Assembly Mull Joints and Methods US 10,968,687

Cited by 7 later US patents, top 25% of utility patents granted in 2021 in our data. Protection runs to 2036. A terminal disclaimer caps this term to an earlier patent's.

Ends Feb 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.

5 fees due Dec 11 to 30, 2026 · next Dec 11
4 fees due Feb 4 to 22, 2027 · next Feb 4
1 fee due Mar 24, 2027
The maintenance fee for Interlock Assemblies for Fenestration Systems and Methods (US 10,422,173) comes due Mar 24, 2027. Unpaid by Sep 24, 2027, it lapses early.
3 fees due Apr 3 to 20, 2027 · next Apr 3
1 fee due May 14, 2027
The maintenance fee for Fiber-Reinforced Composite Extrusion with Enhanced Properties (US 11,813,818) comes due May 14, 2027. Unpaid by Nov 15, 2027, it lapses early.
2 fees due Jul 7 to 21, 2027 · next Jul 7
1 fee due Aug 4, 2027
The maintenance fee for Composite Extrusion with Non-Aligned Fiber Orientation (US 10,550,257) comes due Aug 4, 2027. Unpaid by Feb 4, 2028, it lapses early.
3 fees due Sep 5 to 30, 2027 · next Sep 5
1 fee due Oct 21, 2027
The maintenance fee for Compound Fenestration Assembly Mull Joints and Methods (US 10,626,664) comes due Oct 21, 2027. Unpaid by Apr 21, 2028, it lapses early.
2 fees due Nov 12 to 14, 2027 · next Nov 12

Which patents, and when each one lapses · Pro

Recent changes

Nov 6Assignment recorded on 1 record: Mohs, Ryan and 2 others to Andersen Corporation Recorded Nov 6, 2026, executed Nov 6, 2026. Conveyance as recorded: Assignment of Assignor's Interest. A recorded assignment is a filed document, not a statement of current ownership. Reel 76665, frame 719.
5 of the patents on this record were granted since Aug 17, 2026

What they patent

The 5 largest of its 80 families, grouped by real patent family and labeled by the earliest filing in each. No technology classification is inferred from titles.

Compound Fenestration Assembly Mull Joints and Methods	7 in force	to Feb 2036
Drive Systems and Hinged Window Assemblies Incorporating the Same	4 in force	to Apr 2038
Laminated Glass Retention System	4 in force	to Jul 2033
Composite Extrusion with Non-Aligned Fiber Orientation	3 in force	to Feb 2037
Door Systems with Racking Spacers	3 in force	to Aug 2031

Patents held now

Soonest term end first.

Patent	Title	Status	Expires	Confidence
US 7,481,028	Mulling and Sealing System for Compound Fenestration Units In force Term ends Mar 23, 2027 · High confidence	In force	Term ends Mar 23, 2027	High confidence
US 10,093,051	Methods of Joining In force Term ends Jul 1, 2028 · High confidence	In force	Term ends Jul 1, 2028	High confidence
US 8,057,120	Corner Joining of Structural Members In force Term ends Sep 30, 2028 · High confidence	In force	Term ends Sep 30, 2028	High confidence
US 9,157,902	Status Monitoring System For A Fenestration Unit In force Ends no later than Nov 26, 2028 · Medium confidence	In force	Ends no later than Nov 26, 2028	Medium confidence
US 8,033,056	Doorway with Anti-Bubbling Sill Drain In force Term ends Mar 4, 2029 · High confidence	In force	Term ends Mar 4, 2029	High confidence
US 9,458,656	Internally Power Slider with High Torque Drive System In force Term ends May 8, 2029 · Medium confidence	In force	Term ends May 8, 2029	Medium confidence
US 8,820,029	Modular Fenestration System In force Term ends Dec 23, 2029 · High confidence	In force	Term ends Dec 23, 2029	High confidence
US 9,649,795	Methods of Joining In force Term ends Jan 6, 2030 · High confidence	In force	Term ends Jan 6, 2030	High confidence
US 8,269,627	Status Monitoring System for a Fenestration Unit In force Term ends Jan 19, 2030 · High confidence	In force	Term ends Jan 19, 2030	High confidence
US 8,256,162	Double Hung Window with Improved Water Management System In force Term ends Jul 30, 2030 · High confidence	In force	Term ends Jul 30, 2030	High confidence

10 of 117 patents shown.

Pro members see all 117.

Pro members: see all 117 patents

Also on record, not counted in the 117: 1 patent in force now held by others · 31 patents ended · 24 applications pending · 33 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.

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.

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Andersen Corporation