180 patents currently held
24 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 2027. from the record
Free plan: 3 watched companies. Pro: unlimited.
Alerts on its grants, lapses and transfers.
17
Ending by 2030
Nov 2027
Next term end
103
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 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. 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 Dec 2031 · High confidence
Also notable
Ends May 2032 · High confidence
Also notable
Ends Jun 2028 · High confidence
Suspended Ceiling System, Securing Members, and Process of Installing a Suspended Ceiling System
US 8,596,009
Cited by 59 later US patents, top 10% of utility patents granted in 2013 in our data, and renewed at 3 of 3 maintenance windows. Protection runs to 2031.
Mounting Hardware and Mounting System for Vertical Panels
US 8,695,296
Cited by 53 later US patents, top 10% of utility patents granted in 2014 in our data, and renewed at 3 of 3 maintenance windows. Protection runs to 2032.
A Canopy System and Group Suspension System Therefore
US 8,596,008
Cited by 49 later US patents, top 25% of utility patents granted in 2013 in our data, and renewed at 3 of 3 maintenance windows. Protection runs to 2028.
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.
- 3 fees due Nov 21 to 26, 2026 · next Nov 21
- 5 fees due Dec 4 to 27, 2026 · next Dec 4
- 2 fees due Jan 16 to 28, 2027 · next Jan 16
- 5 fees due Feb 4 to 27, 2027 · next Feb 4
- 3 fees due Mar 12 to 19, 2027 · next Mar 12
- 1 fee due Apr 8, 2027The maintenance fee for Water Stain and Sag Resistant Acoustic Building Panel (US 10,435,888) comes due Apr 8, 2027. Unpaid by Oct 8, 2027, it lapses early.
- 8 fees due May 7 to 28, 2027 · next May 7
- 2 fees due Jun 12 to 19, 2027 · next Jun 12
- 7 fees due Jul 2 to 26, 2027 · next Jul 2
- 2 fees due Aug 13 to 23, 2027 · next Aug 13
- 6 fees due Sep 5 to 10, 2027 · next Sep 5
- 6 fees due Oct 2 to 21, 2027 · next Oct 2
Recent changes
- 4 terms have ended since Aug 16, 2026
What they patent
The 5 largest of its 103 families, grouped by real patent family and labeled by the earliest filing in each. No technology classification is inferred from titles.
| Suspended Ceiling System, Securing Members, and Process of Installing a Suspended Ceiling System | 7 in force | to Dec 2031 |
| Mounting Hardware and Mounting System for Vertical Panels | 6 in force | to Jul 2032 |
| Ceiling System | 5 in force | to Apr 2034 |
| System for Applying a Coating to a Workpiece | 5 in force | to Apr 2034 |
| Ceiling Baffle | 4 in force | to Aug 2040 |
Patents held now
Soonest term end first.
| Patent | Title | Status | Expires | Confidence |
|---|---|---|---|---|
| US D694,025 | Flooring Sheet In force · High confidence | In force | High confidence | |
| US D704,861 | Ceiling Panel In force · High confidence | In force | High confidence | |
| US 8,596,008 | A Canopy System and Group Suspension System Therefore In force · High confidence | In force | High confidence | |
| US 8,950,146 | Canopy System and Group Suspension System Therefore In force · High confidence | In force | High confidence | |
| US 9,279,252 | Canopy System and Group Suspension System Therefore In force · High confidence | In force | High confidence | |
| US 11,098,481 | Canopy System and Group Suspension System Therefore In force · Medium confidence | In force | Medium confidence | |
| US 7,851,052 | Coating System for Sag Resistant Formaldehyde-Free Fibrous Panels In force · High confidence | In force | High confidence | |
| US 7,879,433 | Acoustical Panel and Method of Making Such Panel In force · High confidence | In force | High confidence | |
| US 8,025,769 | Highly Acoustical, Wet-Formed Substrate In force · High confidence | In force | High confidence | |
| US 8,215,075 | Up-Tight Surface Covering and Attachment System In force · High confidence | In force | High confidence |
Also on record, not counted in the 180: 24 patents in force now held by others · 123 patents ended · 15 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.