3 patents currently held
151 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.
88 more records may belong here and await a decision; they are not counted.
The next term ends in Feb 2028. from the record
Of the 151 now held by other companies, 55 name RTX Corporation as their current owner, and 96 more name another party. Each row says which.
Free plan: 3 watched companies. Pro: unlimited.
Alerts on its grants, lapses and transfers.
3
Ending by 2030
Feb 2028
Next term end
3
Patent families
When these terms end
Held patents by the year their term ends
notable patents
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.
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 · High confidence
Also notable
Ends Oct 2030 · High confidence
Also notable
Ends Feb 2028 · High confidence
Turbine Exhaust Strut Airfoil and Gas Path Profile
US 7,625,182
The most cited patent in this portfolio, cited by 56 later US patents, top 25% of utility patents granted in 2009 in our data. Protection runs to 2028.
Fan Case for Turbofan Engine
US 8,202,041
Cited by 41 later US patents, top 25% of utility patents granted in 2012 in our data, and renewed at 3 of 3 maintenance windows. Protection runs to 2030.
Outside Rotor Electric Machine with Reduced Air Gap Variation
US 7,750,530
Renewed at every maintenance window since the 2010 grant; no more fees are due before its term ends in 2028.
Formerly held, still cited
Notable
Ends May 2027 · High confidence
The most cited patent in this portfolio, cited by 80 later US patents, top 10% of utility patents granted in 2014 in our data. Protection runs to 2027.
now held by Ecoservices, LLC
Also notable
Ends May 2028 · High confidence
Cited by 32 later US patents, top 25% of utility patents granted in 2008 in our data, and renewed at 3 of 3 maintenance windows. Protection runs to 2028.
now held by Ecoservices, LLC
Also notable
Ends Feb 2036 · High confidence
Cited by 19 later US patents, top 25% of utility patents granted in 2017 in our data, and renewed at every maintenance window due so far. Protection runs to 2036.
now held by RTX Corporation
Fee deadlines
No maintenance fee falls due on this company's record before Nov 10, 2027.
Recent changes
- 3 terms have ended since Aug 16, 2026
Patents held now
Soonest term end first.
Showing 1 to 3 of 3
| Patent | Title | Status | Expires | Confidence |
|---|---|---|---|---|
| US 7,750,530 | Outside Rotor Electric Machine with Reduced Air Gap Variation held by Pratt & Whitney Canaca Corp. In force · High confidence | In force | High confidence | |
| US 7,625,182 | Turbine Exhaust Strut Airfoil and Gas Path Profile held by Pratt & Whitney Canada Copr. In force · High confidence | In force | High confidence | |
| US 8,202,041 | Fan Case for Turbofan Engine held by Pratt & Whitney Caanda Corp. In force · High confidence | In force | High confidence |
Also on record, not counted in the 3: 151 patents in force now held by others · 204 patents ended · 7 applications pending · 103 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.