Harmonic Drive Systems Inc.
9 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.
Recorded under 4 name spellings.
54
Ending by 2030
Nov 2026
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 Nov 30, 2026The maintenance fee for Speed ratio switching type strain wave gearing (US 11,662,008) comes due Nov 30, 2026. Unpaid by Jun 1, 2027, it lapses early.
- 6 fees due Dec 2 to 16, 2026 · next Dec 2
- 5 fees due Jan 7 to 30, 2027 · next Jan 7
- 5 fees due Feb 18 to 28, 2027 · next Feb 18
- 1 fee due Mar 22, 2027The maintenance fee for Wave gear device (US 9,140,350) comes due Mar 22, 2027. Unpaid by Sep 22, 2027, it lapses early.
- 3 fees due Apr 17 to 20, 2027 · next Apr 17
- 2 fees due May 7 to 28, 2027 · next May 7
- 4 fees due Jun 12 to 29, 2027 · next Jun 12
- 2 fees due Jul 16 to 30, 2027 · next Jul 16
- 1 fee due Aug 11, 2027The maintenance fee for Wave generator and strain wave gearing (US 10,557,539) comes due Aug 11, 2027. Unpaid by Feb 11, 2028, it lapses early.
- 3 fees due Oct 2 to 28, 2027 · next Oct 2
Recent changes
- 1 of the patents on this record was granted since Aug 16, 2026
- 1 term has 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 7,359,102 | Driving method for galvano scanner In force · From the USPTO record | In force | From the USPTO record | |
| US 7,375,487 | Geared motor In force · From the USPTO record | In force | From the USPTO record | |
| US 7,348,897 | Apparatus for transmitting position detection signal of multi-shaft motor In force · From the USPTO record | In force | From the USPTO record | |
| US 7,388,344 | Multichannel pulse train transmitting apparatus In force · From the USPTO record | In force | From the USPTO record | |
| US 7,454,995 | Joint mechanism for robot hand and the like In force · From the USPTO record | In force | From the USPTO record | |
| US 7,966,907 | Finger joint mechanism In force · From the USPTO record | In force | From the USPTO record | |
| US 7,576,456 | Linear actuator In force · From the USPTO record | In force | From the USPTO record | |
| US 7,698,968 | Method for reducing input-side holding torque of wave gear device, and rotary actuator In force · From the USPTO record | In force | From the USPTO record | |
| US 7,556,300 | Finger unit for robot hand In force · From the USPTO record | In force | From the USPTO record | |
| US 7,471,080 | Magnetic absolute encoder In force · From the USPTO record | In force | From the USPTO record |
Also on record, not counted in the 220: 9 patents in force now held by others · 3 lapsed for an unpaid fee · 102 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.
1 pending · 1 abandoned · 29 no status recorded