C08G 18/78
Nitrogen
Official title: Nitrogen {(C08G18/775, C08G18/776 take precedence)}
C08G18/78 (Nitrogen) appears on 3,128 US grants and 3,633 published applications in this corpus.
Search patents in C08G- Granted patents
- 3,128
- Published applications
- 3,633
- Assignees
- 930
- Inventors
- 7,568
- Latest grant
- 6 Oct 2026
Filings by year
| Year | Granted patents | Published applications |
|---|---|---|
| 1976 | 15 | 0 |
| 1977 | 14 | 0 |
| 1978 | 26 | 0 |
| 1979 | 20 | 0 |
| 1980 | 25 | 0 |
| 1981 | 31 | 0 |
| 1982 | 19 | 0 |
| 1983 | 20 | 0 |
| 1984 | 32 | 0 |
| 1985 | 37 | 0 |
| 1986 | 34 | 0 |
| 1987 | 47 | 0 |
| 1988 | 40 | 0 |
| 1989 | 45 | 0 |
| 1990 | 37 | 0 |
| 1991 | 32 | 0 |
| 1992 | 54 | 0 |
| 1993 | 43 | 0 |
| 1994 | 35 | 0 |
| 1995 | 33 | 0 |
| 1996 | 51 | 0 |
| 1997 | 29 | 0 |
| 1998 | 61 | 0 |
| 1999 | 60 | 0 |
| 2000 | 49 | 0 |
| 2001 | 54 | 20 |
| 2002 | 62 | 63 |
| 2003 | 57 | 103 |
| 2004 | 59 | 117 |
| 2005 | 49 | 105 |
| 2006 | 59 | 107 |
| 2007 | 38 | 133 |
| 2008 | 32 | 113 |
| 2009 | 39 | 111 |
| 2010 | 60 | 143 |
| 2011 | 76 | 118 |
| 2012 | 60 | 115 |
| 2013 | 81 | 119 |
| 2014 | 103 | 147 |
| 2015 | 118 | 154 |
| 2016 | 101 | 140 |
| 2017 | 96 | 130 |
| 2018 | 108 | 179 |
| 2019 | 131 | 192 |
| 2020 | 145 | 213 |
| 2021 | 121 | 237 |
| 2022 | 120 | 249 |
| 2023 | 120 | 187 |
| 2024 | 130 | 199 |
| 2025 | 132 | 139 |
| 2026 | 88 | 100 |
By publication year. Applications have been published since 2001. 2026 runs to 8 Oct.
Subgroups
Granted patents
- C08G 18/79Characterised by the polyisocyanates used, these having groups formed by oligomerisation of2,604
- C08G 18/7806Containing -n-c=0 groups786
- C08G 18/7875Containing heterocyclic rings having at least one nitrogen atom in the ring137
- C08G 18/785Containing tertiary amino groups10
- C08G 18/7862Containing cyano groups or aldimine or ketimine groups9
- C08G 18/7856Containing azo groups6
- C08G 18/7868Containing nitro groups2
Recent patents
- Cover coating with good adhesion on polyurethane and polyurea membranes6 Oct 2026US 12,753,267 B2Sika Technology AG
- Producing isocyanate-terminated, urethane group-containing prepolymers1 Sep 2026US 12,723,123 B2Covestro Deutschland AG
- Storage-stable polyisocyanate composition and preparation method therefor1 Sep 2026US 12,723,124 B2Wanhua Chemical Group Co., Ltd.
- Aliphatic polyisocyanate composition, preparation method therefor, and coating composition1 Sep 2026US 12,723,126 B2Wanhua Chemical Group Co., Ltd.
- Water-dispersible polyisocyanate, aqueous polyurethane resin composition, and article25 Aug 2026US 12,715,956 B2Mitsui Chemicals, Inc.
- Polyisocyanates with improved properties3 Sep 2026US 2026/0258190 A1Covestro Deutschland AG
- Process for wet on wet application of a multilayer coating3 Sep 2026US 2026/0258278 A1Axalta Coating Systems IP Co., LLC
- Urea-containing polyurethane acrylate resin, composite material, and method for preparing composite material thereof27 Aug 2026US 2026/0250456 A1Swancor Innovation & Incubation Co., Ltd.
- Active-energy-ray-curable coating composition and molded article27 Aug 2026US 2026/0250514 A1DIC Corporation
- Protective film, optical article including the same, and method for preparing the protective film27 Aug 2026US 2026/0250521 A1Electronics and Telecommunications Research Institute
Most cited
By later US patents
- Process for preparing amide acetals1,464US 7,439,354 B2E. I. Du Pont de Nemours and Company · 2008
- Fast curing compositions996US 6,894,140 B2Tyco Healthecare Gropu LP · 2005
- Method for free-formation of a free-standing, three-dimensional body196US 5,510,066 AGuild Associates, Inc. · 1996
- Process for the production of polyurethane coatings194US 5,126,170 ABayer Aktiengesellschaft · 1992
- Process for the production of polyurethane coatings134US 5,236,741 ABayer Aktiengesellschaft · 1993