2 patents currently held
9 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.
1 more record may belong here and awaits a decision; it is not counted.
The next term ends in Dec 2028. from the record
Of the 9 now held by other companies, 9 name Power Technology Holdings LLC as their current owner. Each row says so.
Free plan: 3 watched companies. Pro: unlimited.
Alerts on its grants, lapses and transfers.
1
Ending by 2030
Dec 2028
Next term end
2
Patent families
When these terms end
Held patents by the year their term ends
notable patents
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.
Notable patents
Ranked by citations and family size, against patents of the same kind granted the same year. How we rank
Only 2 of the currently held patents qualify as notable.
Notable
Ends Nov 2034 · High confidence
Also notable
Ends Dec 2028 · Medium confidence
Hybrid Vehicle Drive System and Method Using Split Shaft Power Take Off
US 9,878,616
The most cited patent in this portfolio, cited by 60 later US patents, top 5% of utility patents granted in 2018 in our data. Protection runs to 2034.
Vehicle Drive System and Method and Idle Reduction System and Method
US 10,792,993
Cited by 31 later US patents, top 10% of utility patents granted in 2020 in our data. Protection runs to 2028.
Formerly held, still cited
Notable
Ends Mar 2031 · High confidence
Cited by 169 later US patents, top 5% of utility patents granted in 2015 in our data, and renewed at every maintenance window due so far. Protection runs to 2031.
now held by Power Technology Holdings LLC
Also notable
Ends Mar 2032 · Medium confidence
Cited by 106 later US patents, top 5% 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 Power Technology Holdings LLC
Fee deadlines
No maintenance fee falls due on this company's record before Nov 10, 2027.
Recent changes
- 1 term has ended since Aug 17, 2026
What they patent
Grouped by real patent family, largest first, labeled by the earliest filing in each. No technology classification is inferred from titles.
| Hybrid Vehicle Drive System and Method Using Split Shaft Power Take Off | 1 in force | to Nov 2034 |
| Vehicle Drive System and Method and Idle Reduction System and Method | 1 in force | to Dec 2028 |
Patents held now
Soonest term end first.
Showing 1 to 2 of 2
| Patent | Title | Status | Expires | Confidence |
|---|---|---|---|---|
| US 10,792,993 | Vehicle Drive System and Method and Idle Reduction System and Method held by Power Technology Holdings LLC In force · Medium confidence | In force | Medium confidence | |
| US 9,878,616 | Hybrid Vehicle Drive System and Method Using Split Shaft Power Take Off held by Power Technology Holdings LLC In force · High confidence | In force | High confidence |
Also on record, not counted in the 2: 9 patents in force now held by others · 4 patents ended · 3 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.
1 terminal disclaimer is on file with no resolved reference. No cap is applied and none is guessed