D06M 13/438
Sulfonamides
Official title: Sulfonamides {; Sulfamic acids}
D06M13/438 (Sulfonamides) appears on 31 US grants and 9 published applications in this corpus.
Search patents in D06M- Granted patents
- 31
- Published applications
- 9
- Assignees
- 18
- Inventors
- 61
- Latest grant
- 30 Dec 2025
Filings by year
| Year | Granted patents | Published applications |
|---|---|---|
| 1978 | 2 | 0 |
| 1979 | 3 | 0 |
| 1980 | 1 | 0 |
| 1981 | 2 | 0 |
| 1982 | 0 | 0 |
| 1983 | 1 | 0 |
| 1984 | 0 | 0 |
| 1985 | 0 | 0 |
| 1986 | 0 | 0 |
| 1987 | 0 | 0 |
| 1988 | 1 | 0 |
| 1989 | 0 | 0 |
| 1990 | 0 | 0 |
| 1991 | 0 | 0 |
| 1992 | 0 | 0 |
| 1993 | 0 | 0 |
| 1994 | 1 | 0 |
| 1995 | 1 | 0 |
| 1996 | 3 | 0 |
| 1997 | 2 | 0 |
| 1998 | 0 | 0 |
| 1999 | 0 | 0 |
| 2000 | 2 | 0 |
| 2001 | 3 | 0 |
| 2002 | 2 | 0 |
| 2003 | 2 | 1 |
| 2004 | 0 | 0 |
| 2005 | 1 | 0 |
| 2006 | 0 | 0 |
| 2007 | 0 | 0 |
| 2008 | 0 | 0 |
| 2009 | 0 | 0 |
| 2010 | 0 | 0 |
| 2011 | 0 | 0 |
| 2012 | 0 | 0 |
| 2013 | 0 | 2 |
| 2014 | 0 | 1 |
| 2015 | 0 | 0 |
| 2016 | 1 | 1 |
| 2017 | 0 | 1 |
| 2018 | 0 | 0 |
| 2019 | 1 | 0 |
| 2020 | 1 | 0 |
| 2021 | 0 | 0 |
| 2022 | 0 | 0 |
| 2023 | 0 | 2 |
| 2024 | 0 | 0 |
| 2025 | 1 | 1 |
By publication year. Applications have been published since 2001.
Recent patents
- Micro-nano structure-based super-hydrophobic fabric and preparation method therefor30 Dec 2025US 12,509,819 B2Soochow University
- Antimicrobial cellulose fiber and fabric comprising multiple antimicrobial cellulose fibers4 Feb 2020US 10,550,511 B2G. Clo Inc.
- Filter medium, method for producing filter medium, water treatment module, and water treatment device21 May 2019US 10,294,125 B2Mitsubishi Materials Corporation
- Method for producing antimicrobial cellulose fiber, fiber produced by the method and fabric using the fiber19 Jul 2016US 9,394,377 B2G. Clo Inc.
- Water- and oil-repellent compositions1 Nov 2005US 6,960,642 B23M Innovative Properties Company
- Functionalized polymer particles of fibers for odor control in wound care10 Jul 2025US 2025/0222161 A1
- Micro-nano structure-based super-hydrophobic fabric and preparation method therefor28 Dec 2023US 2023/0416977 A1Soochow University
- Antimicrobial bedding product for pets and animals23 Feb 2023US 2023/0056710 A1Rem Brands, Inc.
- Filter medium, method for producing filter medium, water treatment module, and water treatment device31 Aug 2017US 2017/0247265 A1Mitsubishi Materials Corporation
- Method for producing antimicrobial cellulose fiber, fiber produced by the method and fabric using the fiber20 Oct 2016US 2016/0305061 A1G. Clo Inc.
Most cited
By later US patents
- Imides and their salts, as well as their use50US 5,502,251 ABayer Aktiengesellschaft · 1996
- 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
- Reactive cyclic N-sulfatoimides and cellulose crosslinked with the imides20US 5,556,976 A1996