403 patents currently held
7 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.
33 more records may belong here and await a decision; they are not counted.
The next term ends in Dec 2026. from the record
Free plan: 3 watched companies. Pro: unlimited.
Alerts on its grants, lapses and transfers.
87
Ending by 2030
Dec 2026
Next term end
249
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 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
Ends Jun 2034 · High confidence
Also notable
Ends Mar 2033 · High confidence
Also notable
Ends Mar 2030 · High confidence
Covering for an Architectural Opening Having Nested Rollers
US 9,567,802
Cited by 80 later US patents, top 5% of utility patents granted in 2017 in our data, and renewed at every maintenance window due so far. Protection runs to 2034.
Operating System for a Covering for an Architectural Opening
US 9,890,588
Cited by 44 later US patents, top 10% of utility patents granted in 2018 in our data, and renewed at every maintenance window due so far. Protection runs to 2033.
Spring System for Roller Blinds
US 8,776,861
Cited by 49 later US patents, top 25% of utility patents granted in 2014 in our data, and renewed at 3 of 3 maintenance windows. Protection runs to 2030.
Formerly held, still cited
Notable
Ends Oct 2032 · High confidence
Cited by 72 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 2032.
now held by CertainTeed Ceilings Corporation
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 Nov 21, 2026The maintenance fee for Shutter Panel for an Architectural Opening (US 10,294,713) comes due Nov 21, 2026. Unpaid by May 21, 2027, it lapses early.
- 2 fees due Dec 13 to 27, 2026 · next Dec 13
- 4 fees due Jan 4 to 14, 2027 · next Jan 4
- 3 fees due Feb 27 to 28, 2027 · next Feb 27
- 5 fees due Mar 5 to 15, 2027 · next Mar 5
- 7 fees due Apr 8 to 30, 2027 · next Apr 8
- 4 fees due May 5 to 26, 2027 · next May 5
- 8 fees due Jun 3 to 30, 2027 · next Jun 3
- 2 fees due Jul 7 to 21, 2027 · next Jul 7
- 6 fees due Aug 6 to 23, 2027 · next Aug 6
- 7 fees due Sep 5 to 30, 2027 · next Sep 5
- 2 fees due Oct 5 to 19, 2027 · next Oct 5
- 11 fees due Nov 3 to 12, 2027 · next Nov 3
Recent changes
- Oct 12Assignment recorded on 1 record: Colson, Wendell B. to Hunter Douglas Inc. Recorded Oct 12, 2026, executed Oct 28, 2021. Conveyance as recorded: Assignment of Assignor's Interest. A recorded assignment is a filed document, not a statement of current ownership. Reel 76333, frame 940.
- 5 of the patents on this record were granted since Aug 17, 2026
- 7 terms have ended since Aug 17, 2026
What they patent
The 5 largest of its 249 families, grouped by real patent family and labeled by the earliest filing in each. No technology classification is inferred from titles.
| Skew Adjustment Mechanism for a Window Covering | 7 in force | to Jul 2035 |
| Covering for an Architectural Opening Having Nested Rollers | 7 in force | to Dec 2034 |
| Handle and Brake Arrangement for a Covering for Architectural Openings | 6 in force | to Nov 2034 |
| Spring Motor and Drag Brake for Drive for Coverings for Architectural Openings | 6 in force | to Apr 2029 |
| Rail for an Architectural Covering | 5 in force | to Jan 2039 |
Patents held now
Soonest term end first.
| Patent | Title | Status | Expires | Confidence |
|---|---|---|---|---|
| US 7,513,291 | Control System for Vertical Covering for Architectural Openings In force · High confidence | In force | High confidence | |
| US 7,392,756 | Apparatus for Manufacturing Fabric for Coverings for Architectural Openings In force · High confidence | In force | High confidence | |
| US 7,464,655 | Apparatus for Manufacturing Fabric for Coverings for Architectural Openings In force · High confidence | In force | High confidence | |
| US 7,516,710 | Apparatus for Automated Shade Manufacturing In force · High confidence | In force | High confidence | |
| US 7,516,771 | Lock Lever Mounting Bracket for Headrails on Coverings for Architectural Openings In force · High confidence | In force | High confidence | |
| US 7,637,302 | Lock Lever Mounting Bracket for Headrails on Coverings for Architectural Openings In force · High confidence | In force | High confidence | |
| US 8,485,242 | Selective Tilting for Blinds Including Driven Drums In force · Medium confidence | In force | Medium confidence | |
| US 7,628,195 | Nonretractable Covering for Architectural Openings In force · High confidence | In force | High confidence | |
| US 7,451,801 | Vertical Vane Support Clip for Coverings for Architectural Openings In force · High confidence | In force | High confidence | |
| US 7,578,334 | Control System for Architectural Coverings with Reversible Drive and Single Operating Element In force · High confidence | In force | High confidence |
Also on record, not counted in the 403: 7 patents in force now held by others · 224 patents ended · 36 applications pending · 81 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.