288 patents currently held
Held is read from USPTO's recorded assignments; a transfer never recorded there does not appear.
The next term ends in Mar 2030. from the record
Free plan: 3 watched companies. Pro: unlimited.
Alerts on its grants, lapses and transfers.
17
Ending by 2030
Mar 2030
Next term end
113
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 2030 · High confidence
Also notable
Ends Jan 2041 · High confidence
Also notable
Ends Aug 2035 · High confidence
System and Method for Wireless Power Transfer in Implantable Medical Devices
US 8,855,786
The most cited patent in this portfolio, cited by 291 later US patents, top 1% of utility patents granted in 2014 in our data. Protection runs to 2030.
Wireless Power Transfer System With Mode Switching Using Selective Quality Factor Alteration
US 11,476,898
Cited by 21 later US patents, top 5% of utility patents granted in 2022 in our data. Protection runs to 2041.
Method of Providing a Single Structure Multi Mode Antenna for Wireless Power Transmission Using Magnetic Field Coupling
US 10,658,847
Cited by 30 later US patents, top 10% of utility patents granted in 2020 in our data. Protection runs to 2035. A terminal disclaimer caps this term to an earlier patent's.
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 23, 2026The maintenance fee for Area-Apportioned Wireless Power Antenna for Maximized Charging Volume (US 11,658,517) comes due Nov 23, 2026. Unpaid by May 24, 2027, it lapses early.
- 5 fees due Dec 6 to 27, 2026 · next Dec 6
- 4 fees due Jan 4 to 25, 2027 · next Jan 4
- 4 fees due Feb 8 to 28, 2027 · next Feb 8
- 12 fees due Mar 5 to 26, 2027 · next Mar 5
- 7 fees due Apr 1 to 17, 2027 · next Apr 1
- 11 fees due May 7 to 28, 2027 · next May 7
- 10 fees due Jun 5 to 19, 2027 · next Jun 5
- 11 fees due Jul 2 to 23, 2027 · next Jul 2
- 1 fee due Aug 27, 2027The maintenance fee for Multi-Layer-Multi-Turn Structure for High Efficiency Wireless Communication (US 11,916,400) comes due Aug 27, 2027. Unpaid by Feb 28, 2028, it lapses early.
- 6 fees due Sep 5 to 29, 2027 · next Sep 5
- 9 fees due Oct 5 to 30, 2027 · next Oct 5
Recent changes
- 12 of the patents on this record were granted since Aug 16, 2026
- 3 terms have ended since Aug 16, 2026
What they patent
The 5 largest of its 113 families, grouped by real patent family and labeled by the earliest filing in each. No technology classification is inferred from titles.
Patents held now
Soonest term end first.
| Patent | Title | Status | Expires | Confidence |
|---|---|---|---|---|
| US 8,610,530 | Multi-Layer-Multi-Turn Structure for Tunable High Efficiency Inductors In force · Medium confidence | In force | Medium confidence | |
| US 8,680,960 | Multi-Layer-Multi-Turn Structure for High Efficiency Inductors In force · Medium confidence | In force | Medium confidence | |
| US 8,692,641 | Multi-Layer-Multi-Turn High Efficiency Inductors with Cavity Structures In force · Medium confidence | In force | Medium confidence | |
| US 8,692,642 | Method for Manufacture of Multi-Layer-Multi-Turn High Efficiency Inductors with Cavity In force · Medium confidence | In force | Medium confidence | |
| US 8,698,590 | Method for Operation of Multi-Layer-Multi-Turn High Efficiency Inductors with Cavity Structure In force · Medium confidence | In force | Medium confidence | |
| US 8,698,591 | Method for Operation of Multi-Layer-Multi-Turn High Efficiency Tunable Inductors In force · Medium confidence | In force | Medium confidence | |
| US 8,707,546 | Method of Manufacture of Multi-Layer-Multi-Turn High Efficiency Tunable Inductors In force · Medium confidence | In force | Medium confidence | |
| US 8,710,948 | Method for Operation of Multi-Layer-Multi-Turn High Efficiency Inductors In force · Medium confidence | In force | Medium confidence | |
| US 8,803,649 | Multi-Layer-Multi-Turn High Efficiency Inductors for an Induction Heating System In force · Medium confidence | In force | Medium confidence | |
| US 8,855,786 | System and Method for Wireless Power Transfer in Implantable Medical Devices In force · High confidence | In force | High confidence |
Also on record, not counted in the 288: 4 patents ended · 40 applications pending · 32 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.