406 patents currently held
62 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.
2 more records may belong here and await a decision; they are not counted.
The next term ends in Sep 2027. from the record
Free plan: 3 watched companies. Pro: unlimited.
Alerts on its grants, lapses and transfers.
5
Ending by 2030
Sep 2027
Next term end
323
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 Apr 2029 · Medium confidence
Also notable
Ends Jul 2037 · High confidence
Also notable
Ends Jan 2038 · High confidence
Straight Through Line Feed Vegetation Trimmer Apparatus
US 9,516,807
Cited by 41 later US patents, top 10% of utility patents granted in 2016 in our data, and renewed at every maintenance window due so far. Protection runs to 2029.
An Autonomous Lawn Mower and a System for Navigating Thereof
US 11,357,166
Cited by 17 later US patents, top 10% of utility patents granted in 2022 in our data. Protection runs to 2037.
Pocket Hole Jig
US 10,357,831
Cited by 31 later US patents, top 10% of utility patents granted in 2019 in our data. Protection runs to 2038.
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 Powered Fastener Driver (US 11,654,538) comes due Nov 23, 2026. Unpaid by May 24, 2027, it lapses early.
- 7 fees due Dec 6 to 27, 2026 · next Dec 6
- 2 fees due Jan 4 to 23, 2027 · next Jan 4
- 3 fees due Feb 13 to 28, 2027 · next Feb 13
- 3 fees due Mar 12 to 26, 2027 · next Mar 12
- 4 fees due Apr 3 to 24, 2027 · next Apr 3
- 3 fees due May 14 to 28, 2027 · next May 14
- 6 fees due Jun 5 to 26, 2027 · next Jun 5
- 8 fees due Jul 2 to 30, 2027 · next Jul 2
- 7 fees due Aug 6 to 27, 2027 · next Aug 6
- 2 fees due Sep 5, 2027
- 5 fees due Oct 2 to 23, 2027 · next Oct 2
- 1 fee due Nov 7, 2027The maintenance fee for Headlamp (US 11,976,806) comes due Nov 7, 2027. Unpaid by May 8, 2028, it lapses early.
Recent changes
- 35 of the patents on this record were granted since Aug 16, 2026
What they patent
The 5 largest of its 323 families, grouped by real patent family and labeled by the earliest filing in each. No technology classification is inferred from titles.
| Electrical Interface | 5 in force | to Feb 2039 |
| Utility Knife | 4 in force | to Jun 2042 |
| Straight Through Line Feed Vegetation Trimmer Apparatus | 4 in force | to Nov 2037 |
| Tripod System | 3 in force | to Apr 2043 |
| Storage Box Light | 3 in force | to Sep 2042 |
Patents held now
Soonest term end first.
| Patent | Title | Status | Expires | Confidence |
|---|---|---|---|---|
| US 7,504,817 | Stud Sensor In force · High confidence | In force | High confidence | |
| US 9,516,807 | Straight Through Line Feed Vegetation Trimmer Apparatus In force (reinstated) · Medium confidence | In force (reinstated) | Medium confidence | |
| US 9,924,631 | Spool for Straight Through Line Feed Vegetation Trimmer Apparatus with Modules and Spokes In force · Medium confidence | In force | Medium confidence | |
| US 11,337,368 | Spool for Straight Through Line Feed Vegetation Trimmer Apparatus with Modules and Spokes In force · Medium confidence | In force | Medium confidence | |
| US 7,977,938 | Device and Method of Detecting Ferrite and Non-Ferrite Objects In force · High confidence | In force | High confidence | |
| US D814,893 | Spool for a String Trimmer Head In force · High confidence | In force | High confidence | |
| US D814,894 | String Trimmer Head In force · High confidence | In force | High confidence | |
| US 11,923,515 | Battery Pack, Tool Battery and Battery Operated Tool In force · Medium confidence | In force | Medium confidence | |
| US D890,219 | Robotic Lawn Mower In force · High confidence | In force | High confidence | |
| US 11,165,126 | Battery Pouch, Battery Cell and Method of Making a Pouch or Battery Cell In force · High confidence | In force | High confidence |
Also on record, not counted in the 406: 62 patents in force now held by others · 6 patents ended · 277 applications pending · 114 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.