H.E.F.
3 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 as renamed to Hydromecanique et Frottement (2020)
12
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 Jan 9, 2027The maintenance fee for Mechanical part coated with a layer of amorphous carbon for sliding in relation to a less hard component (US 10,344,242) comes due Jan 9, 2027. Unpaid by Jul 9, 2027, it lapses early.
- 1 fee due Feb 11, 2027The maintenance fee for Part having a DLC coating and method for applying the DLC coating (US 9,103,016) comes due Feb 11, 2027. Unpaid by Aug 11, 2027, it lapses early.
- 1 fee due Jul 12, 2027The maintenance fee for Method of treating parts for kitchen utensils (US 9,234,269) comes due Jul 12, 2027. Unpaid by Jan 12, 2028, it lapses early.
- 2 fees due Sep 1 to 15, 2027 · next Sep 1
- 1 fee due Oct 21, 2027The maintenance fee for Powder paint thermosetting binder composition and manufacturing method (US 10,626,277) comes due Oct 21, 2027. Unpaid by Apr 21, 2028, it lapses early.
Recent changes
Nothing was recorded against this company's patents in the last 90 days.
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 7,758,963 | Corrosion resistant coating based on silicon, carbon, hydrogen and nitrogen In force · From the USPTO record | In force | From the USPTO record | |
| US 7,955,000 | Joint assembly, particularly for bogie brake linkages In force · From the USPTO record | In force | From the USPTO record | |
| US 8,092,092 | Guide member In force · From the USPTO record | In force | From the USPTO record | |
| US 7,883,744 | Use of a titanium-copper-nickel-based alloy In force · From the USPTO record | In force | From the USPTO record | |
| US 7,938,582 | Self-lubricating guiding member In force · From the USPTO record | In force | From the USPTO record | |
| US 9,011,655 | Device for Generating Cold Plasma in a Vacuum Chamber and Use of Said Device for Thermo-Chemical Processing In force · High confidence | In force | High confidence | |
| US 8,728,588 | Method of treating a surface of at least one part by means of individual sources of an electron cyclotron resonance plasma In force · From the USPTO record | In force | From the USPTO record | |
| US 8,859,078 | Friction Piece in a Lubricated Medium, Working at Contact Pressures Higher Than 200 Mpa In force · High confidence | In force | High confidence | |
| US 8,357,259 | Method for assembling at least two plates and use of the method for preparing an ion beam sputtering assembly In force · From the USPTO record | In force | From the USPTO record | |
| US 8,395,091 | Method for fabricating a heating element by depositing thin layers on an insulating substrate and the element thus obtained In force · From the USPTO record | In force | From the USPTO record |
Also on record, not counted in the 38: 3 patents in force now held by others · 2 lapsed for an unpaid fee · 6 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 no status recorded