C11D 1/38
Cationic compounds
Official title: Cationic compounds {(C11D1/002, C11D1/004, C11D1/008 take precedence)}
C11D1/38 (Cationic compounds) appears on 2,951 US grants and 2,078 published applications in this corpus.
Search patents in C11D- Granted patents
- 2,951
- Published applications
- 2,078
- Assignees
- 716
- Inventors
- 5,330
- Latest grant
- 29 Sep 2026
Filings by year
| Year | Granted patents | Published applications |
|---|---|---|
| 1976 | 32 | 0 |
| 1977 | 34 | 0 |
| 1978 | 38 | 0 |
| 1979 | 25 | 0 |
| 1980 | 31 | 0 |
| 1981 | 37 | 0 |
| 1982 | 29 | 0 |
| 1983 | 19 | 0 |
| 1984 | 40 | 0 |
| 1985 | 29 | 0 |
| 1986 | 27 | 0 |
| 1987 | 33 | 0 |
| 1988 | 42 | 0 |
| 1989 | 64 | 0 |
| 1990 | 35 | 0 |
| 1991 | 30 | 0 |
| 1992 | 45 | 0 |
| 1993 | 42 | 0 |
| 1994 | 52 | 0 |
| 1995 | 93 | 0 |
| 1996 | 88 | 0 |
| 1997 | 79 | 0 |
| 1998 | 144 | 0 |
| 1999 | 175 | 0 |
| 2000 | 137 | 0 |
| 2001 | 125 | 26 |
| 2002 | 125 | 98 |
| 2003 | 109 | 124 |
| 2004 | 73 | 116 |
| 2005 | 78 | 116 |
| 2006 | 58 | 109 |
| 2007 | 44 | 82 |
| 2008 | 41 | 74 |
| 2009 | 35 | 54 |
| 2010 | 36 | 69 |
| 2011 | 37 | 67 |
| 2012 | 35 | 57 |
| 2013 | 41 | 70 |
| 2014 | 52 | 68 |
| 2015 | 50 | 70 |
| 2016 | 49 | 84 |
| 2017 | 56 | 82 |
| 2018 | 43 | 76 |
| 2019 | 60 | 96 |
| 2020 | 65 | 72 |
| 2021 | 66 | 90 |
| 2022 | 53 | 90 |
| 2023 | 66 | 99 |
| 2024 | 53 | 75 |
| 2025 | 58 | 71 |
| 2026 | 43 | 43 |
By publication year. Applications have been published since 2001. 2026 runs to 8 Oct.
Subgroups
Granted patents
- C11D 1/62Quaternary ammonium compounds1,752
- C11D 1/52Carboxylic amides, alkylolamides or imides or their condensation products with alkylene oxides876
- C11D 1/65Mixtures of anionic with cationic compounds424
- C11D 1/42Amino alcohols or amino ethers282
- C11D 1/40Monoamines or polyamines213
- C11D 1/645Mixtures of compounds all of which are cationic180
- C11D 1/58Heterocyclic compounds92
- C11D 1/46Esters of carboxylic acids with amino alcohols67
All 15 subgroupsShow fewer
- C11D 1/50Derivatives of urea, thiourea, cyanamide, guanidine or urethanes25
- C11D 1/60Sulfonium or phosphonium compounds18
- C11D 1/48N-containing polycondensation products14
- C11D 1/64Of unknown constitution6
- C11D 1/385Cationic compounds containing p4
- C11D 1/54Hydrazides of carboxylic acids2
- C11D 1/56Containing nitro or nitroso groups0
Recent patents
- Ambient moisture-activated hard surface treatment powder comprising a carbonate/persalt/sulfonium or phosphonium salt combination29 Sep 2026US 12,747,417 B2Sterilex, LLC
- Detergent composition and chemical-mechanical polishing composition comprising an alkanol hydroxylamine and polyglycerol derivative mixture22 Sep 2026US 12,742,133 B2Daicel Corporation
- Blends of N-acyl alaninates and other N-acyl amino acid surfactants and derivatives thereof22 Sep 2026US 12,742,134 B2The Procter & Gamble Company
- Cleaning liquid and method for cleaning substrate22 Sep 2026US 12,742,138 B2Tokyo Ohka Kogyo.Co., Ltd.
- Soil removal on cotton via treatment in the rinse step for enhanced cleaning in the subsequent wash1 Sep 2026US 12,723,221 B2Ecolab USA Inc.
- Perfume composition8 Oct 2026US 2026/0308486 A1Givaudan SA
- Treatment compositions containing rosins and certain non-ionic surfactants8 Oct 2026US 2026/0308487 A1The Procter & Gamble Company
- Laundry sanitizing compositions1 Oct 2026US 2026/0297458 A1Reckitt Benckiser N.V.
- Surfactant Potentiators for Ethoxylated Surfactants1 Oct 2026US 2026/0297459 A1Arxada AG
- Cleaning method for substrate accommodation container and cleaning apparatus for substrate accommodation container24 Sep 2026US 2026/0284723 A1Kioxia Corporation
Most cited
By later US patents
- Method for forming a photoresist pattern487US 7,467,632 B2Hynix Semiconductor Inc. · 2008
- Autonomous surface cleaning robot for wet and dry cleaning295US 7,761,954 B2iRobot Corporation · 2010
- Fabric treatment materials277US 4,137,180 ALever Brothers Company · 1979
- Detergent compositions containing ethoxylated amines having clay soil removal/anti-redeposition properties202US 4,597,898 AThe Proctor & Gamble Company · 1986
- Mid-chain branched surfactants193US 6,020,303 AThe Procter & Gamble Company · 2000