68 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.
The next term ends in Mar 2027. from the record
Free plan: 3 watched companies. Pro: unlimited.
Alerts on its grants, lapses and transfers.
42
Ending by 2030
Mar 2027
Next term end
9
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 Mar 2028 · Medium confidence
Also notable
Ends Mar 2040 · High confidence
Also notable
Ends Mar 2028 · High confidence
Smart Electrical Outlets and Associated Networks
US 8,374,729
The most cited patent in this portfolio, cited by 323 later US patents, top 1% of utility patents granted in 2013 in our data. Protection runs to 2028.
Intelligent Automatic Transfer Switch Module
US 11,664,677
Cited by 14 later US patents, top 5% of utility patents granted in 2023 in our data. Protection runs to 2040.
Air-Based Cooling for Data Center Rack
US 9,918,413
Cited by 71 later US patents, top 5% of utility patents granted in 2018 in our data, and renewed at every maintenance window due so far. 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.
- 1 fee due Nov 30, 2026The maintenance fee for Intelligent Automatic Transfer Switch Module (US 11,664,677) comes due Nov 30, 2026. Unpaid by Jun 1, 2027, it lapses early.
- 1 fee due Dec 23, 2026The maintenance fee for Locking Electrical Receptacle (US 9,065,207) comes due Dec 23, 2026. Unpaid by Jun 23, 2027, it lapses early.
- 2 fees due Jan 11 to 23, 2027 · next Jan 11
- 1 fee due Feb 8, 2027The maintenance fee for Accelerated Motion Relay (US 11,721,505) comes due Feb 8, 2027. Unpaid by Aug 9, 2027, it lapses early.
- 1 fee due Apr 13, 2027The maintenance fee for Smart Electrical Outlets and Associated Networks (US 9,160,168) comes due Apr 13, 2027. Unpaid by Oct 13, 2027, it lapses early.
- 1 fee due May 12, 2027The maintenance fee for Parallel Redundant Power Distribution (US 10,474,220) comes due May 12, 2027. Unpaid by Nov 12, 2027, it lapses early.
- 2 fees due Aug 6 to 27, 2027 · next Aug 6
- 2 fees due Sep 8 to 12, 2027 · next Sep 8
- 2 fees due Oct 2, 2027
Recent changes
- 1 of the patents on this record was granted since Aug 16, 2026
What they patent
The 5 largest of its 9 families, grouped by real patent family and labeled by the earliest filing in each. No technology classification is inferred from titles.
| Accelerated Motion Relay | 21 in force | to Jun 2041 |
| Smart Electrical Outlets and Associated Networks | 18 in force | to May 2030 |
| Locking Electrical Receptacle | 12 in force | to Dec 2028 |
| Uniform Equipment Mounting System | 6 in force | to Nov 2029 |
| Air-Based Cooling for Data Center Rack | 4 in force | to Oct 2029 |
Patents held now
Soonest term end first.
| Patent | Title | Status | Expires | Confidence |
|---|---|---|---|---|
| US 8,152,554 | Locking Electrical Receptacle In force · Medium confidence | In force | Medium confidence | |
| US 8,174,149 | Auto-Switching Duplex Module In force · Medium confidence | In force | Medium confidence | |
| US 9,431,763 | Frictional Locking Receptacle with Release Operated by Actuator In force · Medium confidence | In force | Medium confidence | |
| US 10,256,571 | Locking Electrical Receptacle In force · Medium confidence | In force | Medium confidence | |
| US 10,326,240 | Frictional Locking Receptacle with Programmable Release In force · Medium confidence | In force | Medium confidence | |
| US 10,516,237 | Frictional Locking Receptacle with Programmable Release In force · Medium confidence | In force | Medium confidence | |
| US 10,727,631 | Locking Electrical Receptacle with Elongate Clamping Surfaces In force · Medium confidence | In force | Medium confidence | |
| US 11,804,682 | Data Center Network Distribution System In force · Medium confidence | In force | Medium confidence | |
| US 12,374,831 | Frictional Locking Receptacle with Programmable Release In force · Medium confidence | In force | Medium confidence | |
| US 11,581,682 | Frictional Locking Receptacle with Programmable Release In force · Medium confidence | In force | Medium confidence |
Also on record, not counted in the 68: 1 patent in force now held by others · 6 applications pending · 17 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.