C08J 2361/20
Condensation polymers of aldehydes or ketones with only compounds containing hydrogen attached
Official title: Condensation polymers of aldehydes or ketones with only compounds containing hydrogen attached to nitrogen
C08J2361/20 (Condensation polymers of aldehydes or ketones with only compounds containing hydrogen attached) appears on 204 US grants and 207 published applications in this corpus.
Search patents in C08J- Granted patents
- 204
- Published applications
- 207
- Assignees
- 156
- Inventors
- 581
- Latest grant
- 6 Oct 2026
Filings by year
| Year | Granted patents | Published applications |
|---|---|---|
| 1976 | 7 | 0 |
| 1977 | 3 | 0 |
| 1978 | 8 | 0 |
| 1979 | 2 | 0 |
| 1980 | 5 | 0 |
| 1981 | 9 | 0 |
| 1982 | 5 | 0 |
| 1983 | 1 | 0 |
| 1984 | 5 | 0 |
| 1985 | 4 | 0 |
| 1986 | 3 | 0 |
| 1987 | 2 | 0 |
| 1988 | 0 | 0 |
| 1989 | 1 | 0 |
| 1990 | 2 | 0 |
| 1991 | 1 | 0 |
| 1992 | 4 | 0 |
| 1993 | 4 | 0 |
| 1994 | 4 | 0 |
| 1995 | 5 | 0 |
| 1996 | 5 | 0 |
| 1997 | 4 | 0 |
| 1998 | 2 | 0 |
| 1999 | 1 | 0 |
| 2000 | 0 | 0 |
| 2001 | 2 | 1 |
| 2002 | 4 | 2 |
| 2003 | 4 | 4 |
| 2004 | 2 | 3 |
| 2005 | 0 | 3 |
| 2006 | 2 | 2 |
| 2007 | 0 | 4 |
| 2008 | 1 | 6 |
| 2009 | 1 | 5 |
| 2010 | 1 | 8 |
| 2011 | 1 | 8 |
| 2012 | 3 | 16 |
| 2013 | 3 | 4 |
| 2014 | 3 | 8 |
| 2015 | 8 | 13 |
| 2016 | 10 | 15 |
| 2017 | 5 | 11 |
| 2018 | 11 | 13 |
| 2019 | 5 | 9 |
| 2020 | 4 | 11 |
| 2021 | 5 | 7 |
| 2022 | 9 | 13 |
| 2023 | 8 | 15 |
| 2024 | 14 | 15 |
| 2025 | 7 | 6 |
| 2026 | 4 | 5 |
By publication year. Applications have been published since 2001. 2026 runs to 8 Oct.
Subgroups
Granted patents
Recent patents
- Blasthole stemming based on formaldehyde resins, system and charging method6 Oct 2026US 12,754,001 B2Oxiquim S.A.
- Light-resistant, heat-resistant and durable ultraviolet absorber9 Jun 2026US 12,649,845 B2Miyoshi Oil & Fat Co., Ltd.
- Sound-absorbing material block, method for preparing the same and its application27 Jan 2026US 12,538,070 B2Aac Acoustic Technologies (Shenzhen) Co., Ltd.
- Coating including primer20 Jan 2026US 12,528,949 B2Mercene Coatings AB
- Gravity-driven chitosan-enhanced melamine sponge for stable ultrafast filtration9 Dec 2025US 12,492,509 B2Versitech Limited
- Degradable crosslinking agent20 Aug 2026US 2026/0242563 A1Nagase Chemtex Corporation
- Resin composition, cured product, prepreg, metal foil-clad laminate, resin composite sheet, and printed wiring board18 Jun 2026US 2026/0167815 A1Mitsubishi Gas Chemical Company, Inc.
- Melamine resin foams by oxidation reaction11 Jun 2026US 2026/0159660 A1BASF SE
- Articles comprising a combination of polymer aerogel and melamine-formaldehyde foam and related systems and methods12 Mar 2026US 2026/0071043 A1Aerogel Technologies, LLC
- Preparation method, product, and application of modified melamine foam26 Feb 2026US 2026/0055250 A1FoamTech (Zhejiang) New Materials Co., Ltd
Most cited
By later US patents
- Two-component binder for exterior fiberboard87US 4,165,305 AAllied Chemical Corporation · 1979
- Melamine resin prepregs and melamine resin laminates based on modified melamine resins64US 5,206,066 AChemie Linz Gesellschaft m.b.H. · 1993
- Resilient foam based on a melamine-formaldehyde condensate46US 4,540,717 ABASF SE · 1985
- Manufacture of resilient foams based on a melamine-formaldehyde condensate37US 4,334,971 ABASF SE · 1982
- Water soluble one-component polymeric resin binder system for fiberglass mats37US 4,571,356 AReichhold Chemicals, Inc. · 1986