C08K 5/31
Guanidine
Official title: Guanidine; Derivatives thereof
C08K5/31 (Guanidine) appears on 235 US grants and 298 published applications in this corpus.
Search patents in C08K- Granted patents
- 235
- Published applications
- 298
- Assignees
- 171
- Inventors
- 724
- Latest grant
- 7 Jul 2026
Filings by year
| Year | Granted patents | Published applications |
|---|---|---|
| 1976 | 4 | 0 |
| 1977 | 2 | 0 |
| 1978 | 3 | 0 |
| 1979 | 0 | 0 |
| 1980 | 1 | 0 |
| 1981 | 1 | 0 |
| 1982 | 0 | 0 |
| 1983 | 2 | 0 |
| 1984 | 1 | 0 |
| 1985 | 4 | 0 |
| 1986 | 1 | 0 |
| 1987 | 0 | 0 |
| 1988 | 4 | 0 |
| 1989 | 2 | 0 |
| 1990 | 3 | 0 |
| 1991 | 2 | 0 |
| 1992 | 0 | 0 |
| 1993 | 1 | 0 |
| 1994 | 1 | 0 |
| 1995 | 2 | 0 |
| 1996 | 1 | 0 |
| 1997 | 0 | 0 |
| 1998 | 0 | 0 |
| 1999 | 0 | 0 |
| 2000 | 2 | 0 |
| 2001 | 1 | 1 |
| 2002 | 1 | 2 |
| 2003 | 2 | 3 |
| 2004 | 3 | 4 |
| 2005 | 3 | 3 |
| 2006 | 1 | 4 |
| 2007 | 3 | 2 |
| 2008 | 1 | 4 |
| 2009 | 1 | 5 |
| 2010 | 2 | 8 |
| 2011 | 3 | 9 |
| 2012 | 1 | 13 |
| 2013 | 9 | 8 |
| 2014 | 11 | 9 |
| 2015 | 12 | 25 |
| 2016 | 11 | 22 |
| 2017 | 16 | 23 |
| 2018 | 19 | 31 |
| 2019 | 20 | 22 |
| 2020 | 15 | 15 |
| 2021 | 13 | 18 |
| 2022 | 16 | 14 |
| 2023 | 8 | 15 |
| 2024 | 12 | 14 |
| 2025 | 8 | 7 |
| 2026 | 6 | 17 |
By publication year. Applications have been published since 2001. 2026 runs to 8 Oct.
Recent patents
- Transport media for clinical specimen collection and molecular diagnostic applications and methods of production and use thereof7 Jul 2026US 12,674,157 B2Siemens Healthcare Diagnostics Inc.
- Coating compositions26 May 2026US 12,637,538 B2PPG Industries Ohio, Inc.
- Phenothiazine derivative and acrylic rubber composition10 Mar 2026US 12,570,830 B2Unimatec Co., Ltd.
- Silane coupling agent composition and rubber composition comprising same10 Mar 2026US 12,570,832 B2ENEOS Materials Corporation
- Silane coupling agent composition and rubber composition comprising same3 Feb 2026US 12,540,231 B2ENEOS Materials Corporation
- Rubber composition and tire8 Oct 2026US 2026/0308366 A1The Yokohama Rubber Co., Ltd.
- Treatment agent for acrylic fibers and use of the same8 Oct 2026US 2026/0308815 A1Matsumoto Yushi-Seiyaku Co., Ltd.
- Rubber compositions and articles thereof24 Sep 2026US 2026/0286106 A1The Goodyear Tire & Rubber Company
- Transport media for clinical specimen collection and molecular diagnostic applications and methods of production and use thereof24 Sep 2026US 2026/0286337 A1Siemens Healthcare Diagnostics Inc.
- Rubber composition for pneumatic tyre and pneumatic tyre produced therefrom17 Sep 2026US 2026/0275088 A1
Most cited
By later US patents
- Scavengers for one-component alkoxy-functional RTV compositions and processes79US 4,417,042 AGeneral Electric Company · 1983
- One package, stable, moisture curable, polyalkoxy-terminated organopolysiloxane compositions and method for making69US 4,395,526 AGeneral Electric Company · 1983
- Silica-containing rubber composition vulcanizable with sulfur66US 6,536,492 B2Michelin Recherche et Technique S. A. · 2003
- Binder system and method for particulate material with debind rate control additive53US 6,376,585 B1Apex Advanced Technologies, LLC · 2002
- Binder system and method for particulate material cross-reference to related application45US 6,846,862 B2Apex Advanced Technologies, LLC · 2005