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20 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.
21
Ending by 2030
Jun 2027
Next term end
When these terms end
Held patents by the year their term ends
20262027202820292030203120322033203420352036203720382039204020412042204320442045
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 2, 2026The maintenance fee for Powered Prosthetic Hip Joint (US 9,044,346) comes due Dec 2, 2026. Unpaid by Jun 2, 2027, it lapses early.
- 1 fee due Jan 14, 2027The maintenance fee for Prosthetic and Orthotic Devices Having Magnetorheological Elastomer Spring with Controllable Stiffness (US 9,078,734) comes due Jan 14, 2027. Unpaid by Jul 14, 2027, it lapses early.
- 2 fees due Feb 25 to 27, 2027 · next Feb 25
- 1 fee due Mar 10, 2027The maintenance fee for Prosthetic Joint with Cam Locking Mechanism (US 10,405,999) comes due Mar 10, 2027. Unpaid by Sep 10, 2027, it lapses early.
- 1 fee due Apr 27, 2027The maintenance fee for Smooth Rollover Insole for Prosthetic Foot (US 9,168,158) comes due Apr 27, 2027. Unpaid by Oct 27, 2027, it lapses early.
- 1 fee due Aug 23, 2027The maintenance fee for Height-Adjustable Threaded Shock Absorbing Module and Associated Coupling Member (US 9,265,626) comes due Aug 23, 2027. Unpaid by Feb 23, 2028, it lapses early.
Recent changes
- 2 terms have ended since Aug 16, 2026
Patents held now
Soonest term end first. Each date below is computed on that patent's own page, which shows the rule, the adjustments and the fee history it was derived from.
| Patent | Title | Status | Expires | Confidence |
|---|---|---|---|---|
| US 7,846,213 | Foot Prosthesis with Resilient Multi-Axial Ankle In force · High confidence | In force | High confidence | |
| US 8,992,630 | Method and apparatus for decreasing build height of prosthetic products In force · From the USPTO record | In force | From the USPTO record | |
| US 7,662,191 | Liner Donning and Doffing Device In force · High confidence | In force | High confidence | |
| US 7,581,454 | Method of Measuring the Performance of a Prosthetic Foot In force · High confidence | In force | High confidence | |
| US 7,618,463 | Energy Returning Prosthetic Joint In force · High confidence | In force | High confidence | |
| US 7,632,315 | Vacuum Chamber Socket System In force · High confidence | In force | High confidence | |
| US 7,597,675 | Knee Brace and Method for Securing the Same In force · High confidence | In force | High confidence | |
| US D714,939 | Prosthetic Foot with a Colored Edge In force · High confidence | In force | High confidence | |
| US 7,691,154 | Systems and Methods of Controlling Pressure Within a Prosthetic Knee In force · High confidence | In force | High confidence | |
| US 7,896,927 | Systems and Methods for Actuating a Prosthetic Ankle Based on a Relaxed Position In force · High confidence | In force | High confidence |
Also on record, not counted in the 53: 20 patents in force now held by others · 16 lapsed for an unpaid fee · 29 ended at full term. List them
Sources and methods
Compiled from the USPTO record, grants, published applications and recorded assignments, not yet reviewed by hand.
How this record was built
Computed patent terms end on the dates shown. Related patents and pending applications may cover overlapping subject matter.
Published applications
US patent applications published under this name that have not become patents. An application is published about eighteen months after its earliest filing; one that has not been published is in no public record.
3 abandoned · 5 no status recorded