H01B 3/302
Polyurethanes or polythiourethanes
Official title: {Polyurethanes or polythiourethanes; Polyurea or polythiourea}
H01B3/302 (Polyurethanes or polythiourethanes) appears on 228 US grants and 193 published applications in this corpus.
Search patents in H01B- Granted patents
- 228
- Published applications
- 193
- Assignees
- 171
- Inventors
- 650
- Latest grant
- 3 Mar 2026
Filings by year
| Year | Granted patents | Published applications |
|---|---|---|
| 1976 | 4 | 0 |
| 1977 | 4 | 0 |
| 1978 | 3 | 0 |
| 1979 | 4 | 0 |
| 1980 | 1 | 0 |
| 1981 | 4 | 0 |
| 1982 | 5 | 0 |
| 1983 | 4 | 0 |
| 1984 | 4 | 0 |
| 1985 | 6 | 0 |
| 1986 | 9 | 0 |
| 1987 | 5 | 0 |
| 1988 | 3 | 0 |
| 1989 | 5 | 0 |
| 1990 | 6 | 0 |
| 1991 | 8 | 0 |
| 1992 | 3 | 0 |
| 1993 | 3 | 0 |
| 1994 | 6 | 0 |
| 1995 | 1 | 0 |
| 1996 | 2 | 0 |
| 1997 | 7 | 0 |
| 1998 | 3 | 0 |
| 1999 | 2 | 0 |
| 2000 | 3 | 0 |
| 2001 | 1 | 0 |
| 2002 | 5 | 1 |
| 2003 | 3 | 0 |
| 2004 | 0 | 0 |
| 2005 | 0 | 3 |
| 2006 | 0 | 2 |
| 2007 | 1 | 5 |
| 2008 | 0 | 3 |
| 2009 | 1 | 5 |
| 2010 | 1 | 9 |
| 2011 | 2 | 9 |
| 2012 | 7 | 7 |
| 2013 | 4 | 6 |
| 2014 | 8 | 12 |
| 2015 | 5 | 18 |
| 2016 | 7 | 11 |
| 2017 | 14 | 12 |
| 2018 | 6 | 20 |
| 2019 | 12 | 11 |
| 2020 | 8 | 14 |
| 2021 | 8 | 11 |
| 2022 | 7 | 5 |
| 2023 | 6 | 7 |
| 2024 | 7 | 10 |
| 2025 | 9 | 8 |
| 2026 | 1 | 4 |
By publication year. Applications have been published since 2001. 2026 runs to 8 Oct.
Recent patents
- Spacer3 Mar 2026US 12,565,161 B2Aptiv Technologies AG
- Busbar, at least partly covered with a thermoplastic polyurethane composition9 Dec 2025US 12,492,282 B2BASF SE
- Rectangular cross-section multi-core insulated wire, and method for manufacturing same11 Nov 2025US 12,469,619 B2Totoku Makisen Co., Ltd.
- Film capacitor, film, and metallized film23 Sep 2025US 12,424,385 B2Murata Manufacturing Co., Ltd.
- Flame-retardant thermoplastic polyurethane16 Sep 2025US 12,415,905 B2BASF SE
- Enamel coated fusible element30 Jul 2026US 2026/0221370 A1Littelfuse, Inc.
- Cable4 Jun 2026US 2026/0155277 A1LEONI Kabel GmbH
- Conductor blocking by means of intermittent filling with two component hardening composition30 Apr 2026US 2026/0120919 A1Nexans
- Method for producing a bi- or multipolar lead26 Mar 2026US 2026/0088197 A1Heraeus Medevio GmbH & Co. KG
- A polyol composition for the production of polyurethane foams suitable for filling hollow core insulators11 Dec 2025US 2025/0376602 A1Huntsman Advanced Materials (Switzerland) GmbH
Most cited
By later US patents
- Downhole cable223US 8,369,667 B2Halliburton Energy Services.Inc. · 2013
- Fiber/resin composites, and method of making the same75US 4,892,764 ALoctite Corporation · 1990
- Vegetable oil extended polyurethane systems65US 4,375,521 ACommunications Technology Corporation · 1983
- Polyurethane/polyurea elastomers50US 5,688,860 AMinnesota Mining and Manufacturing Company · 1997
- Ester plasticizers for polyarethane compositions41US 4,666,968 ACasChem, Inc. · 1987