C08G 18/2063
Having two nitrogen atoms in the condensed ring system
Official title: {having two nitrogen atoms in the condensed ring system}
C08G18/2063 (Having two nitrogen atoms in the condensed ring system) appears on 222 US grants and 318 published applications in this corpus.
Search patents in C08G- Granted patents
- 222
- Published applications
- 318
- Assignees
- 187
- Inventors
- 925
- Latest grant
- 14 Jul 2026
Filings by year
| Year | Granted patents | Published applications |
|---|---|---|
| 1976 | 2 | 0 |
| 1977 | 2 | 0 |
| 1978 | 0 | 0 |
| 1979 | 0 | 0 |
| 1980 | 1 | 0 |
| 1981 | 2 | 0 |
| 1982 | 1 | 0 |
| 1983 | 1 | 0 |
| 1984 | 2 | 0 |
| 1985 | 3 | 0 |
| 1986 | 3 | 0 |
| 1987 | 1 | 0 |
| 1988 | 6 | 0 |
| 1989 | 5 | 0 |
| 1990 | 4 | 0 |
| 1991 | 3 | 0 |
| 1992 | 5 | 0 |
| 1993 | 5 | 0 |
| 1994 | 4 | 0 |
| 1995 | 3 | 0 |
| 1996 | 0 | 0 |
| 1997 | 1 | 0 |
| 1998 | 1 | 0 |
| 1999 | 0 | 0 |
| 2000 | 1 | 0 |
| 2001 | 0 | 0 |
| 2002 | 1 | 1 |
| 2003 | 1 | 2 |
| 2004 | 2 | 1 |
| 2005 | 0 | 2 |
| 2006 | 0 | 0 |
| 2007 | 0 | 7 |
| 2008 | 0 | 0 |
| 2009 | 0 | 3 |
| 2010 | 1 | 6 |
| 2011 | 0 | 6 |
| 2012 | 1 | 6 |
| 2013 | 2 | 4 |
| 2014 | 2 | 12 |
| 2015 | 10 | 14 |
| 2016 | 6 | 10 |
| 2017 | 11 | 17 |
| 2018 | 11 | 25 |
| 2019 | 13 | 25 |
| 2020 | 14 | 23 |
| 2021 | 23 | 38 |
| 2022 | 11 | 33 |
| 2023 | 22 | 20 |
| 2024 | 14 | 19 |
| 2025 | 14 | 26 |
| 2026 | 7 | 18 |
By publication year. Applications have been published since 2001. 2026 runs to 8 Oct.
Recent patents
- Additive for reducing polyurethane foam degradation14 Jul 2026US 12,679,943 B2Huntsman International LLC
- Two-part interface materials, systems including the interface material, and methods thereof16 Jun 2026US 12,655,243 B2Ddp Specialty Electronic Materials US, LLC
- Two component coating compositions16 Jun 2026US 12,655,247 B2PPG Industries Ohio, Inc.
- Compositions containing uretdione groups crosslinking at low temperatures24 Feb 2026US 12,559,586 B2Covestro Deutschland AG
- Synthesis of polyurethane polymers in flow reactors3 Feb 2026US 12,540,212 B2International Business Machines Corporation
- Prepolymer composition, polyurethane resin, elastic molded article, and method for producing prepolymer composition20 Aug 2026US 2026/0242528 A1Mitsui Chemicals, Inc.
- Two-component polyurethane adhesive with durable adhesion to inorganic substrates13 Aug 2026US 2026/0234453 A1Ddp Specialty Electronic Materials US, LLC
- Stabilized aqueous anode composition30 Jul 2026US 2026/0217902 A1Coatex
- Solvatization of linear polyurethane-materials via caprolactam/alcohole mixtures30 Jul 2026US 2026/0217935 A1BASF SE
- Sound-proofing material and method for producing same16 Jul 2026US 2026/0201136 A1Inoac Corporation
Most cited
By later US patents
- At least partially resorbable reticulated elastomeric matrix elements and methods of making same952US 9,050,176 B2Biomerix Corporation · 2015
- Delayed action/enhanced curing catalysis in polyurethane systems40US 4,582,861 AAir Products and Chemicals, Inc. · 1986
- Urethane-containing silylated prepolymers and process for preparation thereof38US 9,315,614 B2Evonik Degussa GmbH · 2016
- Shock-absorbing polyurethane foam and production process thereof31US 4,987,156 AAchilles Corporation · 1991
- Cyclic quaternary hydroxyalkyl phenoxide catalysts for isocyanate reactions29US 3,993,652 AAir Products and Chemicals, Inc. · 1976