D21H 17/455
Comprising tertiary amine or being at least partially quaternised
Official title: {comprising tertiary amine or being at least partially quaternised}
D21H17/455 (Comprising tertiary amine or being at least partially quaternised) appears on 347 US grants and 167 published applications in this corpus.
Search patents in D21H- Granted patents
- 347
- Published applications
- 167
- Assignees
- 134
- Inventors
- 669
- Latest grant
- 5 May 2026
Filings by year
| Year | Granted patents | Published applications |
|---|---|---|
| 1976 | 6 | 0 |
| 1977 | 5 | 0 |
| 1978 | 9 | 0 |
| 1979 | 6 | 0 |
| 1980 | 10 | 0 |
| 1981 | 14 | 0 |
| 1982 | 11 | 0 |
| 1983 | 11 | 0 |
| 1984 | 12 | 0 |
| 1985 | 7 | 0 |
| 1986 | 6 | 0 |
| 1987 | 3 | 0 |
| 1988 | 8 | 0 |
| 1989 | 7 | 0 |
| 1990 | 10 | 0 |
| 1991 | 6 | 0 |
| 1992 | 11 | 0 |
| 1993 | 11 | 0 |
| 1994 | 9 | 0 |
| 1995 | 7 | 0 |
| 1996 | 13 | 0 |
| 1997 | 10 | 0 |
| 1998 | 10 | 0 |
| 1999 | 10 | 0 |
| 2000 | 11 | 0 |
| 2001 | 9 | 0 |
| 2002 | 5 | 7 |
| 2003 | 3 | 7 |
| 2004 | 3 | 9 |
| 2005 | 3 | 8 |
| 2006 | 0 | 4 |
| 2007 | 6 | 5 |
| 2008 | 2 | 4 |
| 2009 | 1 | 7 |
| 2010 | 7 | 8 |
| 2011 | 3 | 4 |
| 2012 | 8 | 3 |
| 2013 | 2 | 5 |
| 2014 | 7 | 5 |
| 2015 | 4 | 9 |
| 2016 | 6 | 6 |
| 2017 | 12 | 13 |
| 2018 | 2 | 5 |
| 2019 | 5 | 14 |
| 2020 | 10 | 4 |
| 2021 | 5 | 5 |
| 2022 | 5 | 4 |
| 2023 | 2 | 10 |
| 2024 | 3 | 15 |
| 2025 | 6 | 3 |
| 2026 | 5 | 3 |
By publication year. Applications have been published since 2001. 2026 runs to 8 Oct.
Recent patents
- Additive compositions for papermaking5 May 2026US 12,618,197 B2Solenis Technologies, L.P.
- Treatment system for manufacture of paper, board or the like21 Apr 2026US 12,606,959 B2Kemira Oyj
- Static mixer for electrical submersible pump (ESP) high gas/oil ratio (GOR) completions3 Mar 2026US 12,565,736 B2Saudi Arabian Oil Company
- GPAM compositions and methods17 Feb 2026US 12,553,188 B2Kemira Oyj
- Wet laid paper and paperboard products with high wet strength and method of making the same27 Jan 2026US 12,534,854 B2First Quality Tissue, LLC
- Water soluble amphoteric emulsion terpolymers, methods of making, and methods of use as retention and dewatering aids30 Jul 2026US 2026/0218455 A1
- Wet laid paper and paperboard products with high wet strength and method of making the same21 May 2026US 2026/0139438 A1First Quality Tissue, LLC
- Novel sulfobetaine monomers, process for preparing same, and uses thereof5 Feb 2026US 2026/0035343 A1Snf Group
- Anionic Dry Strength Additives And Methods Thereof27 Nov 2025US 2025/0361680 A1
- High molecular weight gpam with anionic polysaccharide promoter3 Jul 2025US 2025/0215649 A1
Most cited
By later US patents
- Production of paper and paperboard198US 4,753,710 AAllied Colloids Limited · 1988
- Temporary wet strength resins with nitrogen heterocyclic nonnucleophilic functionalities and paper products containing same167US 4,981,557 AThe Procter & Gamble Company · 1991
- Temporary wet strength resins and paper products containing same144US 5,085,736 AThe Procter & Gamble Company · 1992
- Linear basic polymers, their preparation and their use136US 4,421,602 ABASF SE · 1983
- Temporary wet strength resins and paper products containing same130US 5,008,344 AThe Procter & Gamble Company · 1991