411 patents currently held
1 more in force is now held by another company
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 Dec 2026. from the record
Free plan: 3 watched companies. Pro: unlimited.
Alerts on its grants, lapses and transfers.
61
Ending by 2030
Dec 2026
Next term end
382
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 15, 2026 · includes USPTO assignment & status data published Nov 15, 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 2028 · High confidence
Also notable
Ends Dec 2032 · High confidence
Also notable
Ends Nov 2034 · High confidence
A Pressure Tank, an Device for Feeding Powder to a Conveying Pipe, and Its Feeding Method, and Method for Determining Feeding Intervals of Powder to the Conveying Pipe
US 8,113,745
Cited by 58 later US patents, top 25% of utility patents granted in 2012 in our data, and renewed at 3 of 3 maintenance windows. Protection runs to 2028.
Shot Processing Machine
US 9,884,407
The largest patent family in this portfolio, 70 related applications, renewed at every maintenance window due so far. Protection runs to 2032.
Device for Forming Foamed Kneaded Material and Method for Forming Foamed Kneaded Material
US 9,962,868
Granted 2018 and renewed at every maintenance window due so far. Protection runs to 2034.
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.
- 4 fees due Nov 26 to 30, 2026 · next Nov 26
- 4 fees due Dec 6 to 27, 2026 · next Dec 6
- 3 fees due Jan 7 to 18, 2027 · next Jan 7
- 6 fees due Feb 1 to 22, 2027 · next Feb 1
- 4 fees due Mar 8 to 15, 2027 · next Mar 8
- 12 fees due Apr 3 to 30, 2027 · next Apr 3
- 6 fees due May 7 to 26, 2027 · next May 7
- 4 fees due Jun 5 to 30, 2027 · next Jun 5
- 3 fees due Jul 21 to 30, 2027 · next Jul 21
- 7 fees due Aug 2 to 27, 2027 · next Aug 2
- 5 fees due Sep 3 to 26, 2027 · next Sep 3
- 6 fees due Oct 2 to 16, 2027 · next Oct 2
- 3 fees due Nov 5 to 14, 2027 · next Nov 5
Recent changes
- 16 of the patents on this record were granted since Aug 17, 2026
- 3 terms have ended since Aug 17, 2026
What they patent
The 5 largest of its 382 families, grouped by real patent family and labeled by the earliest filing in each. No technology classification is inferred from titles.
Patents held now
Soonest term end first.
| Patent | Title | Status | Expires | Confidence |
|---|---|---|---|---|
| US 7,906,049 | Method for Filling a Foam Mixture in a Cavity of a Metal Mold and an Apparatus for Molding a Mold In force · High confidence | In force | High confidence | |
| US D674,295 | Master with Four Right-Angled Points In force · High confidence | In force | High confidence | |
| US 8,056,605 | Flaskless Molding Method In force · Medium confidence | In force | Medium confidence | |
| US 8,304,141 | Stainless Steel, Titanium, or Titanium Alloy Solid Polymer Fuel Cell Separator and Its Method of Production and Method of Evaluation of Warp and Twist of Separator In force · Medium confidence | In force | Medium confidence | |
| US 7,832,243 | Apparatus for a Shot Peening Treatment In force · High confidence | In force | High confidence | |
| US 8,327,913 | Casting Method to Produce a Casting and Press Used for the Casting Method In force · High confidence | In force | High confidence | |
| US 7,766,543 | Method for Controlling an Expandable Mixture In force · High confidence | In force | High confidence | |
| US 7,766,725 | Shot-Blasting Machine In force · High confidence | In force | High confidence | |
| US 7,807,281 | Stainless Steel, Titanium, or Titanium Alloy Solid Polymer Fuel Cell Separator and Its Method of Production and Method of Evaluation of Warp and Twist of Separator In force · High confidence | In force | High confidence | |
| US 7,594,532 | Method of Operation for an Apparatus for Making an Upper and a Lower Mold and the Apparatus Therefor In force · Medium confidence | In force | Medium confidence |
Also on record, not counted in the 411: 1 patent in force now held by others · 71 patents ended · 77 applications pending · 104 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.