C08G 69/14
Lactams
C08G69/14 (Lactams) appears on 646 US grants and 516 published applications in this corpus.
Search patents in C08G- Granted patents
- 646
- Published applications
- 516
- Assignees
- 292
- Inventors
- 1,588
- Latest grant
- 6 Oct 2026
Filings by year
| Year | Granted patents | Published applications |
|---|---|---|
| 1976 | 19 | 0 |
| 1977 | 13 | 0 |
| 1978 | 25 | 0 |
| 1979 | 10 | 0 |
| 1980 | 14 | 0 |
| 1981 | 15 | 0 |
| 1982 | 11 | 0 |
| 1983 | 9 | 0 |
| 1984 | 12 | 0 |
| 1985 | 13 | 0 |
| 1986 | 26 | 0 |
| 1987 | 19 | 0 |
| 1988 | 9 | 0 |
| 1989 | 8 | 0 |
| 1990 | 12 | 0 |
| 1991 | 15 | 0 |
| 1992 | 11 | 0 |
| 1993 | 8 | 0 |
| 1994 | 7 | 0 |
| 1995 | 4 | 0 |
| 1996 | 6 | 0 |
| 1997 | 7 | 0 |
| 1998 | 13 | 0 |
| 1999 | 14 | 0 |
| 2000 | 12 | 0 |
| 2001 | 17 | 2 |
| 2002 | 13 | 13 |
| 2003 | 14 | 17 |
| 2004 | 15 | 8 |
| 2005 | 9 | 8 |
| 2006 | 3 | 10 |
| 2007 | 1 | 5 |
| 2008 | 3 | 4 |
| 2009 | 3 | 12 |
| 2010 | 3 | 16 |
| 2011 | 4 | 21 |
| 2012 | 4 | 16 |
| 2013 | 11 | 23 |
| 2014 | 18 | 27 |
| 2015 | 22 | 17 |
| 2016 | 14 | 23 |
| 2017 | 19 | 25 |
| 2018 | 13 | 29 |
| 2019 | 20 | 36 |
| 2020 | 20 | 38 |
| 2021 | 21 | 48 |
| 2022 | 21 | 33 |
| 2023 | 23 | 33 |
| 2024 | 15 | 24 |
| 2025 | 18 | 21 |
| 2026 | 10 | 7 |
By publication year. Applications have been published since 2001. 2026 runs to 8 Oct.
Subgroups
Granted patents
Recent patents
- Purification method for laurolactam6 Oct 2026US 12,753,280 B2Hanwha Solutions Corporation
- Flame retardant polyamide11 Aug 2026US 12,703,772 B2BASF SE
- Thermoplastic polymer particles and methods of production and uses thereof16 Jun 2026US 12,655,292 B2Xerox Corporation
- Powder for an electrically insulating coating26 May 2026US 12,637,585 B2Arkema France
- Acid resistant filter media7 Apr 2026US 12,595,396 B2Entegris, Inc.
- Method for producing polyamide powder for 3d printing23 Jul 2026US 2026/0209436 A1Arkema France
- Laminate in contact with fuel11 Jun 2026US 2026/0158730 A1Daikin Industries, Ltd.
- Hybrid dialkylphosphinic acid salt, preparation method therefor and use thereof4 Jun 2026US 2026/0152623 A1Ningbo Institute of Materials Technology and Engineering, Chinese Academy of Sciences
- Flame-retardant polyamide composition26 Feb 2026US 2026/0055273 A1BASF SE
- Catalytic chemical recycling of polyamide-based plastics12 Feb 2026US 2026/0042730 A1Northwestern University
Most cited
By later US patents
- Use of a nylon-12 for selective laser sintering87US 6,245,281 B1Huels Aktiengesellschaft · 2001
- Reclaiming .epsilon.-caprolactam from nylon 6 carpet62US 5,169,870 ABASF SE · 1992
- Macromonomers having reactive side groups60US 5,869,592 AMaxdem Incorporated · 1999
- Process for separating low molecular weight compounds from an impure thermoplastic polymer or mixture53US 5,459,168 AFried. Krupp AG Hoesch-Krupp · 1995
- Pultrusion process for long fiber-reinforced nylon composites48US 5,424,388 AIndustrial Technology Research Institute · 1995