C08G 18/2855
Lactams
Official title: {Lactams}
C08G18/2855 (Lactams) appears on 32 US grants and 29 published applications in this corpus.
Search patents in C08G- Granted patents
- 32
- Published applications
- 29
- Assignees
- 22
- Inventors
- 122
- Latest grant
- 17 Feb 2026
Filings by year
| Year | Granted patents | Published applications |
|---|---|---|
| 1978 | 1 | 0 |
| 1979 | 0 | 0 |
| 1980 | 0 | 0 |
| 1981 | 1 | 0 |
| 1982 | 0 | 0 |
| 1983 | 0 | 0 |
| 1984 | 3 | 0 |
| 1985 | 5 | 0 |
| 1986 | 5 | 0 |
| 1987 | 0 | 0 |
| 1988 | 1 | 0 |
| 1989 | 1 | 0 |
| 1990 | 0 | 0 |
| 1991 | 0 | 0 |
| 1992 | 0 | 0 |
| 1993 | 0 | 0 |
| 1994 | 0 | 0 |
| 1995 | 0 | 0 |
| 1996 | 0 | 0 |
| 1997 | 0 | 0 |
| 1998 | 0 | 0 |
| 1999 | 0 | 0 |
| 2000 | 0 | 0 |
| 2001 | 0 | 0 |
| 2002 | 0 | 0 |
| 2003 | 1 | 1 |
| 2004 | 0 | 0 |
| 2005 | 0 | 0 |
| 2006 | 0 | 0 |
| 2007 | 0 | 0 |
| 2008 | 0 | 1 |
| 2009 | 0 | 0 |
| 2010 | 0 | 0 |
| 2011 | 0 | 0 |
| 2012 | 0 | 1 |
| 2013 | 0 | 1 |
| 2014 | 0 | 1 |
| 2015 | 1 | 1 |
| 2016 | 1 | 2 |
| 2017 | 1 | 2 |
| 2018 | 1 | 1 |
| 2019 | 1 | 5 |
| 2020 | 1 | 3 |
| 2021 | 1 | 2 |
| 2022 | 2 | 2 |
| 2023 | 0 | 1 |
| 2024 | 1 | 0 |
| 2025 | 3 | 3 |
| 2026 | 1 | 2 |
By publication year. Applications have been published since 2001. 2026 runs to 8 Oct.
Recent patents
- Dihydroxy lactam based polymers, compositions and applications thereof17 Feb 2026US 12,552,931 B2ISP Investments Inc.
- Method for preparing cationic electrodeposition coating composition25 Nov 2025US 12,480,005 B2Nippon Paint Automotive Coatings Co., Ltd.
- Caprolactam-modified liquid mdi and its use in polyurethanes4 Nov 2025US 12,460,042 B2BASF SE
- Adhesive, laminated film, and production method for laminated film24 Jun 2025US 12,338,376 B2DIC Corporation
- Low-temperature curing adhesive compositions9 Apr 2024US 11,952,514 B2PPG Industries Ohio, Inc.
- Coating compositions, articles, and methods of coating16 Jul 2026US 2026/0201207 A1Swimc LLC
- Adhesive, laminate, laminate manufacturing method, and packaging material11 Jun 2026US 2026/0159727 A1DIC Corporation
- Block isocyanate composition, coating material composition and coating film22 May 2025US 2025/0163208 A1Asahi Kasei Kabushiki Kaisha
- Low-temperature curing coating compositions6 Feb 2025US 2025/0043165 A1PPG Industries Ohio, Inc.
- Adhesive, multilayer body and packaging material16 Jan 2025US 2025/0019581 A1DIC Corporation
Most cited
By later US patents
- Urethane-based stain-release coatings59US 6,646,088 B23M Innovative Properties Company · 2003
- Process for preparing a polymer alloy, molded product, and reaction injection molded products29US 4,742,128 AStamicarbon B. V. · 1988
- Polyamide imides produced from either lactams or polyamides with isocyanates or anhydrides in which products are precipitated with a non-solvent25US 4,628,079 ABayer Aktiengesellschaft · 1986
- Heat resistant resin and process for producing the same13US 4,448,844 AHitachi Chemical Company, Ltd. · 1984
- Process for the production of polycondensates containing imide groups11US 4,088,637 ABayer Aktiengesellschaft · 1978