Three patents currently held, every record listed here
Held is read from USPTO's recorded assignments; a transfer never recorded there does not appear.
6 more records may belong here and await a decision; they are not counted.
The next term ends in Nov 2035. from the record
Free plan: 3 watched companies. Pro: unlimited.
Alerts on its grants, lapses and transfers.
0
Ending by 2030
Nov 2035
Next term end
3
Patent families
When these terms end
Each bar runs from grant to computed term end. 2020 to 2041.202420282032203620402041
Every computed term in this portfolio is shown above.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 patents
Ranked by citations and family size, against patents of the same kind granted the same year. How we rank
Notable
Ends Jul 2039 · High confidence
Also notable
Ends Nov 2035 · High confidence
Also notable
Ends Jul 2041 · High confidence
Reamer Shaft Extension Assembly
US 11,013,520
Granted 2021. Computed term ends 2039.
Methods of Forming an Oxide Layer on a Metal Body
US 10,865,468
The earliest of the three still in force, granted 2020 and renewed since. Its term ends first, in 2035.
Rotationally Balanced Slot Pattern for Flexible Shafts
US 11,672,545
The newest of the three, granted 2023. It anchors the portfolio to 2041, later than anything else here.
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 Dec 13, 2026The maintenance fee for Rotationally Balanced Slot Pattern for Flexible Shafts (US 11,672,545) comes due Dec 13, 2026. Unpaid by Jun 14, 2027, it lapses early.
Recent changes
Nothing was recorded against this company's patents in the last 90 days.
What they patent
Grouped by real patent family, largest first, labeled by the earliest filing in each. No technology classification is inferred from titles.
| Rotationally Balanced Slot Pattern for Flexible Shafts | 1 in force | to Jul 2041 |
| Reamer Shaft Extension Assembly | 1 in force | to Jul 2039 |
| Methods of Forming an Oxide Layer on a Metal Body | 1 in force | to Nov 2035 |
Patents held now
Soonest term end first.
Showing 1 to 3 of 3
| Patent | Title | Status | Expires | Confidence |
|---|---|---|---|---|
| US 10,865,468 | Methods of Forming an Oxide Layer on a Metal Body In force · High confidence | In force | High confidence | |
| US 11,013,520 | Reamer Shaft Extension Assembly In force · High confidence | In force | High confidence | |
| US 11,672,545 | Rotationally Balanced Slot Pattern for Flexible Shafts In force · High confidence | In force | High confidence |
Also on record, not counted in the 3: 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.