C09K 3/1021
Polyurethanes or derivatives thereof
Official title: {Polyurethanes or derivatives thereof}
C09K3/1021 (Polyurethanes or derivatives thereof) appears on 233 US grants and 176 published applications in this corpus.
Search patents in C09K- Granted patents
- 233
- Published applications
- 176
- Assignees
- 152
- Inventors
- 631
- Latest grant
- 29 Jul 2025
Filings by year
| Year | Granted patents | Published applications |
|---|---|---|
| 1976 | 3 | 0 |
| 1977 | 1 | 0 |
| 1978 | 1 | 0 |
| 1979 | 1 | 0 |
| 1980 | 0 | 0 |
| 1981 | 1 | 0 |
| 1982 | 3 | 0 |
| 1983 | 2 | 0 |
| 1984 | 1 | 0 |
| 1985 | 4 | 0 |
| 1986 | 3 | 0 |
| 1987 | 3 | 0 |
| 1988 | 7 | 0 |
| 1989 | 6 | 0 |
| 1990 | 3 | 0 |
| 1991 | 4 | 0 |
| 1992 | 5 | 0 |
| 1993 | 7 | 0 |
| 1994 | 9 | 0 |
| 1995 | 4 | 0 |
| 1996 | 3 | 0 |
| 1997 | 8 | 0 |
| 1998 | 6 | 0 |
| 1999 | 3 | 0 |
| 2000 | 6 | 0 |
| 2001 | 7 | 0 |
| 2002 | 9 | 9 |
| 2003 | 11 | 8 |
| 2004 | 5 | 9 |
| 2005 | 7 | 5 |
| 2006 | 3 | 4 |
| 2007 | 0 | 2 |
| 2008 | 3 | 5 |
| 2009 | 0 | 8 |
| 2010 | 2 | 5 |
| 2011 | 3 | 10 |
| 2012 | 5 | 4 |
| 2013 | 5 | 5 |
| 2014 | 5 | 6 |
| 2015 | 4 | 8 |
| 2016 | 4 | 5 |
| 2017 | 5 | 9 |
| 2018 | 6 | 12 |
| 2019 | 8 | 15 |
| 2020 | 11 | 18 |
| 2021 | 10 | 7 |
| 2022 | 8 | 7 |
| 2023 | 10 | 6 |
| 2024 | 5 | 2 |
| 2025 | 3 | 4 |
| 2026 | 0 | 3 |
By publication year. Applications have been published since 2001. 2026 runs to 8 Oct.
Recent patents
- Sealant material29 Jul 2025US 12,371,600 B2Henkel AG & Co. KGaA
- Polyurethane resin-forming composition for membrane-sealing material, and membrane and membrane module using same27 May 2025US 12,312,435 B2Tosoh Corporation
- Electronic device including display side protection member18 Feb 2025US 12,232,350 B2Samsung Electronics Co., Ltd.
- Process for producing polyurethane-polyisocyanurate elastomers, sealing materials and adhesives having a long pot life10 Dec 2024US 12,162,973 B2BASF SE
- Polyurethane polymer having a hardness of less than or equal to 60 Shore A12 Nov 2024US 12,139,607 B2Covestro Intellectual Property GmbH & Co.KG
- Curable resin composition for use in sealing material for film liquid crystal panel, and film liquid crystal panel having end sealed by said curable resin composition1 Oct 2026US 2026/0297403 A1Nof Corporation
- Formulations based on bio-sourced polyols10 Sep 2026US 2026/0265444 A1Arkema France
- Polyurethane-resin-forming composition, and film sealing material and film module each obtained using said polyurethane- resin-forming composition9 Apr 2026US 2026/0098121 A1Tosoh Corporation
- Multilayer composite4 Dec 2025US 2025/0368852 A1Saint-Gobain Performance Plastics Corporation
- Curable composition for sealing material, and panel structure using said curable composition27 Nov 2025US 2025/0361378 A1Sekisui Fuller Company, Ltd.
Most cited
By later US patents
- Silicon-terminated polyurethane polymer137US 4,345,053 AEssex Chemical Corporation · 1982
- Silane-containing isocyanate-terminated polyurethane polymers131US 4,374,237 AUnion Carbide Corporation · 1983
- Fire retardant elements127US 4,992,481 ABayer Aktiengesellschaft · 1991
- High speed cure sealant74US 4,780,520 AEssex Specialty Products, Inc. · 1988
- Sealing material69US 4,680,233 ARaychem Corporation · 1987