6 patents currently held
54 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 Jul 2038. from the record
Of the 54 now held by other companies, 44 were conveyed to BWXT Mpower Inc. in the filing they arrived in, and 10 more name another party. Each row says which.
Free plan: 3 watched companies. Pro: unlimited.
Alerts on its grants, lapses and transfers.
0
Ending by 2030
Jul 2038
Next term end
6
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 Jul 2038 · High confidence
Also notable
Ends Apr 2041 · High confidence
Also notable
Ends Oct 2040 · High confidence
Stent
US 10,980,988
The earliest of the three still in force, granted 2021 and renewed since. Its term ends first, in 2038.
Medical Device
US 11,812,928
The newest of the three, granted 2023. It anchors the portfolio to 2041, later than anything else here.
Method for Producing an Implant from a Biocompatible Silicone
US 11,801,618
The newest of the three, granted 2023. It anchors the portfolio to 2040, later than anything else here.
Formerly held, still cited
Notable
Ends Feb 2033 · High confidence
Cited by 32 later US patents, top 25% of utility patents granted in 2015 in our data, and renewed at every maintenance window due so far. Protection runs to 2033.
conveyed to Babcock and Wilcox Nuclear Energy Inc. - now held by BWXT Mpower, Inc.
Also notable
Ends Aug 2036 · High confidence
Cited by 11 later US patents, top 25% of utility patents granted in 2018 in our data, and renewed at every maintenance window due so far. Protection runs to 2036.
now held by BWXT Mpower, Inc.
Also notable
Ends Jul 2034 · Medium confidence
Granted 2018 and renewed at every maintenance window due so far. Protection runs to 2034.
conveyed to Babcock and Wilcox Mpower Inc. - now held by BWXT Mpower, Inc.
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 Fire Extinguisher and Method (US 11,660,486) comes due Nov 30, 2026. Unpaid by Jun 1, 2027, it lapses early.
- 1 fee due Apr 30, 2027The maintenance fee for Method for Producing an Implant from a Biocompatible Silicone (US 11,801,618) comes due Apr 30, 2027. Unpaid by Nov 1, 2027, it lapses early.
- 1 fee due May 14, 2027The maintenance fee for Medical Device (US 11,812,928) comes due May 14, 2027. Unpaid by Nov 15, 2027, it lapses early.
- 1 fee due Nov 7, 2027The maintenance fee for Switch Apparatus (US 11,978,602) comes due Nov 7, 2027. Unpaid by May 8, 2028, it lapses early.
Recent changes
- 1 of the patents on this record was granted since Aug 16, 2026
- 1 term has ended since Aug 16, 2026
What they patent
The 5 largest of its 6 families, grouped by real patent family and labeled by the earliest filing in each. No technology classification is inferred from titles.
| Endoscopy Equipment with Retractable Video Unit | 1 in force | to Dec 2043 |
| Medical Device | 1 in force | to Apr 2041 |
| Method for Producing an Implant from a Biocompatible Silicone | 1 in force | to Oct 2040 |
| Fire Extinguisher and Method | 1 in force | to Aug 2040 |
| Stent | 1 in force | to Jul 2038 |
Patents held now
Soonest term end first.
Showing 1 to 6 of 6
| Patent | Title | Status | Expires | Confidence |
|---|---|---|---|---|
| US 10,980,988 | Stent held by Novatech S.A. In force · High confidence | In force | High confidence | |
| US 11,660,486 | Fire Extinguisher and Method held by Novatech FS In force · High confidence | In force | High confidence | |
| US 11,801,618 | Method for Producing an Implant from a Biocompatible Silicone held by Novatech S.A. In force · High confidence | In force | High confidence | |
| US 11,812,928 | Medical Device held by Novatech S.A. In force · High confidence | In force | High confidence | |
| US 11,978,602 | Switch Apparatus held by Hyundai Motor Company, Kia Corporation, Novatech Co., Ltd. and Alps Electric Korea Co., Ltd. In force · High confidence | In force | High confidence | |
| US 12,788,232 | Endoscopy Equipment with Retractable Video Unit held by Novatech S.A. In force · High confidence | In force | High confidence |
Also on record, not counted in the 6: 54 patents in force now held by others · 23 patents ended · 4 applications pending · 12 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.