Bayer MaterialScience AG
276 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 15 name spellings.
Recorded as renamed to Covestro Deutschland AG (2015)
22
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 19, 2026The maintenance fee for Process for the in situ production of polyether polyols based on renewable materials and their use in the production of flexible polyurethane foams (US 9,035,105) comes due Nov 19, 2026. Unpaid by May 19, 2027, it lapses early.
- 1 fee due Dec 9, 2026The maintenance fee for Base-catalyzed, long chain, active polyethers from short chain DMC-catalyzed starters (US 9,051,412) comes due Dec 9, 2026. Unpaid by Jun 9, 2027, it lapses early.
- 1 fee due Jan 21, 2027The maintenance fee for Fast cure aspartate polysiloxane hybrid coating (US 9,085,712) comes due Jan 21, 2027. Unpaid by Jul 21, 2027, it lapses early.
- 2 fees due Mar 15 to 29, 2027 · next Mar 15
- 1 fee due Apr 20, 2027The maintenance fee for Polybutadiene modified polymer polyols, foams prepared from polybutadiene modified polymer polyols, and processes for the production thereof (US 9,163,099) comes due Apr 20, 2027. Unpaid by Oct 20, 2027, it lapses early.
- 1 fee due May 24, 2027The maintenance fee for Thermoplastic molding composition based on AES rubber with low surface gloss (US 9,193,860) comes due May 24, 2027. Unpaid by Nov 24, 2027, it lapses early.
Recent changes
- 15 terms have 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 9,127,154 | Impact resistant, flame retardant thermoplastic molding composition In force · From the USPTO record | In force | From the USPTO record | |
| US 7,456,229 | Process for the production of rigid and semi-rigid foams with low amounts of diisocyanate using polymer polyols characterized by high solids and a high hydroxyl number and the resultant foams In force · From the USPTO record | In force | From the USPTO record | |
| US 7,589,148 | Preparation of a Polyurethane Dispersion with Blocked Isocyanate Groups In force · High confidence | In force | High confidence | |
| US 7,524,898 | Thermoplastic molding composition having improved toughness at low temperatures and surface appearance In force · From the USPTO record | In force | From the USPTO record | |
| US 7,445,770 | Polyurethane dispersions for use in personal care products In force · From the USPTO record | In force | From the USPTO record | |
| US 7,595,580 | Electroactive Polymer Actuated Devices In force · High confidence | In force | High confidence | |
| US 7,678,840 | Reduction of MDI emissions in cavity filling NVH polyurethane foams In force · From the USPTO record | In force | From the USPTO record | |
| US 7,473,677 | High productivity process for alkylphenol ethoxylates In force · From the USPTO record | In force | From the USPTO record | |
| US 7,976,736 | Process for Preparing Silver-Containing Aqueous Formulation Useful for Electrically Conductive or Reflective Coatings In force · High confidence | In force | High confidence | |
| US 7,799,848 | Impact resistant, flame retardant thermoplastic molding composition In force · From the USPTO record | In force | From the USPTO record |
Also on record, not counted in the 34: 276 patents in force now held by others · 579 lapsed for an unpaid fee · 358 ended at full term · 1 past the fee grace period · 3 surrendered on reissue. 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.
454 abandoned · 160 no status recorded