D06M 13/418
Cyclic amides
Official title: Cyclic amides, e.g. lactams; Amides of oxalic acid
D06M13/418 (Cyclic amides) appears on 27 US grants and 19 published applications in this corpus.
Search patents in D06M- Granted patents
- 27
- Published applications
- 19
- Assignees
- 24
- Inventors
- 74
- Latest grant
- 4 Nov 2025
Filings by year
| Year | Granted patents | Published applications |
|---|---|---|
| 1976 | 1 | 0 |
| 1977 | 1 | 0 |
| 1978 | 2 | 0 |
| 1979 | 1 | 0 |
| 1980 | 0 | 0 |
| 1981 | 0 | 0 |
| 1982 | 1 | 0 |
| 1983 | 0 | 0 |
| 1984 | 0 | 0 |
| 1985 | 0 | 0 |
| 1986 | 0 | 0 |
| 1987 | 0 | 0 |
| 1988 | 0 | 0 |
| 1989 | 0 | 0 |
| 1990 | 0 | 0 |
| 1991 | 0 | 0 |
| 1992 | 1 | 0 |
| 1993 | 0 | 0 |
| 1994 | 2 | 0 |
| 1995 | 1 | 0 |
| 1996 | 1 | 0 |
| 1997 | 1 | 0 |
| 1998 | 0 | 0 |
| 1999 | 0 | 0 |
| 2000 | 0 | 0 |
| 2001 | 0 | 0 |
| 2002 | 1 | 0 |
| 2003 | 0 | 1 |
| 2004 | 0 | 0 |
| 2005 | 0 | 0 |
| 2006 | 0 | 0 |
| 2007 | 0 | 0 |
| 2008 | 1 | 0 |
| 2009 | 0 | 1 |
| 2010 | 1 | 1 |
| 2011 | 1 | 1 |
| 2012 | 1 | 1 |
| 2013 | 0 | 0 |
| 2014 | 1 | 1 |
| 2015 | 1 | 1 |
| 2016 | 1 | 2 |
| 2017 | 0 | 0 |
| 2018 | 1 | 1 |
| 2019 | 0 | 0 |
| 2020 | 0 | 3 |
| 2021 | 2 | 2 |
| 2022 | 0 | 1 |
| 2023 | 2 | 0 |
| 2024 | 1 | 1 |
| 2025 | 1 | 0 |
| 2026 | 0 | 2 |
By publication year. Applications have been published since 2001. 2026 runs to 8 Oct.
Recent patents
- Lactam coated textile4 Nov 2025US 12,460,346 B2Conopco, Inc.
- Rubber-reinforcing cord and rubber product using same19 Mar 2024US 11,932,738 B2Nippon Sheet Glass Co., Ltd.
- Core wire for friction transmission belts, friction transmission belt, and manufacturing methods therefor14 Nov 2023US 11,815,158 B2Mitsuboshi Belting Ltd.
- Rubber-reinforcing cord and rubber product including same24 Jan 2023US 11,560,671 B2Nippon Sheet Glass Co., Ltd.
- Toothed belt10 Aug 2021US 11,085,505 B2Bando Chemical Industries, Ltd.
- Surface-modified fibers, method for producing same, and molded article using surface-modified fibers23 Jul 2026US 2026/0210032 A1Kuraray Co., Ltd.
- Processes for treating yarns and/or textiles comprising elastomeric fibers in combination with polyamide and/or polyester synthetic fibers16 Jul 2026US 2026/0201635 A1Aquafil S.P.A.
- Fiber-treating agent15 Feb 2024US 2024/0049824 A1Kao Corporation
- Antibacterial fiber, preparation method thereof and antibacterial textile product25 Aug 2022US 2022/0264888 A1Harvest Spf Textile (Beijing) Co., Ltd.
- Lactam coated textile28 Oct 2021US 2021/0332526 A1Conopco, Inc., d/b/a UNILEVER
Most cited
By later US patents
- Apparatus for crosslinking individualized cellulose fibers48US 5,437,418 AWeyerhaeuser Company · 1995
- Method and apparatus for crosslinking individualized cellulose fibers27US 6,436,231 B1Weyerhaeuser Company · 2002
- Method and apparatus for crosslinking individualized cellulose fibers23US 5,366,591 A1994
- Water- and oil-repellent treatment agent21US 5,132,028 AMinnesota Mining and Manufacturing Company · 1992
- Reactive cyclic N-sulfatoimides and cellulose crosslinked with the imides20US 5,556,976 A1996