Imertech SAS
17 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 2 name spellings.
5
Ending by 2030
Aug 2028
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.
- 2 fees due Dec 11 to 18, 2026 · next Dec 11
- 4 fees due Jan 2 to 16, 2027 · next Jan 2
- 4 fees due Feb 8 to 28, 2027 · next Feb 8
- 1 fee due Apr 20, 2027The maintenance fee for Titanium oxide-containing aluminum oxide particles based on corundum melted in an electric arc furnace from calcined alumina, and a method for the production thereof (US 9,163,128) comes due Apr 20, 2027. Unpaid by Oct 20, 2027, it lapses early.
- 3 fees due May 3 to 14, 2027 · next May 3
- 1 fee due Jul 16, 2027The maintenance fee for Preparation of Silica-Coated Calcium Carbonates with Increased Surface Area and Mesoporosity (US 11,872,294) comes due Jul 16, 2027. Unpaid by Jan 18, 2028, it lapses early.
- 2 fees due Sep 10 to 17, 2027 · next Sep 10
- 1 fee due Oct 28, 2027The maintenance fee for Carbonaceous composite materials with snowball-like morphology (US 10,637,058) comes due Oct 28, 2027. Unpaid by Apr 28, 2028, it lapses early.
Recent changes
- 2 of the patents on this record were granted 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 9,175,167 | Porous ceramic bodies and process for their preparation In force · From the USPTO record | In force | From the USPTO record | |
| US 8,864,862 | Coated abrasive grains, method and for the production thereof as well as the use thereof for producing abrasives In force · From the USPTO record | In force | From the USPTO record | |
| US 8,444,946 | Method for Preparing Talcose Compositions Comprising Synthetic Mineral Particles Containing Silicon, Germanium and Metal In force · High confidence | In force | High confidence | |
| US 9,102,858 | Abrasive grain agglomerates, process for the production thereof and the use thereof for producing abrasives In force · From the USPTO record | In force | From the USPTO record | |
| US 9,005,323 | Abrasive Grains Based on Zirconia Alumina In force · High confidence | In force | High confidence | |
| US 8,834,588 | Polycrystalline AL2O3 bodies based on melted aluminum oxide In force · From the USPTO record | In force | From the USPTO record | |
| US 10,336,891 | Methods and compositions related to recycling polymer waste In force · From the USPTO record | In force | From the USPTO record | |
| US 9,433,918 | Method of Making Diatomaceous Earth Granulate In force · High confidence | In force | High confidence | |
| US 9,675,980 | Flotation Process for Recovering Feldspar from a Feldspar Ore In force · High confidence | In force | High confidence | |
| US 9,163,128 | Titanium oxide-containing aluminum oxide particles based on corundum melted in an electric arc furnace from calcined alumina, and a method for the production thereof In force · From the USPTO record | In force | From the USPTO record |
Also on record, not counted in the 72: 17 patents in force now held by others · 27 lapsed for an unpaid fee · 14 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.
19 pending · 2 abandoned · 22 no status recorded