C07C 41/44
By treatments giving rise to a chemical modification
Official title: by treatments giving rise to a chemical modification (by chemisorption C07C41/36)
C07C41/44 (By treatments giving rise to a chemical modification) appears on 72 US grants and 58 published applications in this corpus.
Search patents in C07C- Granted patents
- 72
- Published applications
- 58
- Assignees
- 64
- Inventors
- 216
- Latest grant
- 5 Dec 2023
Filings by year
| Year | Granted patents | Published applications |
|---|---|---|
| 1977 | 1 | 0 |
| 1978 | 0 | 0 |
| 1979 | 1 | 0 |
| 1980 | 0 | 0 |
| 1981 | 0 | 0 |
| 1982 | 2 | 0 |
| 1983 | 2 | 0 |
| 1984 | 2 | 0 |
| 1985 | 2 | 0 |
| 1986 | 1 | 0 |
| 1987 | 0 | 0 |
| 1988 | 2 | 0 |
| 1989 | 1 | 0 |
| 1990 | 0 | 0 |
| 1991 | 1 | 0 |
| 1992 | 4 | 0 |
| 1993 | 2 | 0 |
| 1994 | 4 | 0 |
| 1995 | 1 | 0 |
| 1996 | 0 | 0 |
| 1997 | 4 | 0 |
| 1998 | 3 | 0 |
| 1999 | 0 | 0 |
| 2000 | 2 | 0 |
| 2001 | 0 | 0 |
| 2002 | 0 | 0 |
| 2003 | 0 | 0 |
| 2004 | 1 | 0 |
| 2005 | 0 | 2 |
| 2006 | 1 | 1 |
| 2007 | 3 | 0 |
| 2008 | 0 | 1 |
| 2009 | 0 | 2 |
| 2010 | 0 | 5 |
| 2011 | 1 | 2 |
| 2012 | 1 | 3 |
| 2013 | 0 | 3 |
| 2014 | 3 | 4 |
| 2015 | 7 | 5 |
| 2016 | 5 | 6 |
| 2017 | 4 | 5 |
| 2018 | 3 | 2 |
| 2019 | 2 | 0 |
| 2020 | 0 | 4 |
| 2021 | 1 | 2 |
| 2022 | 4 | 3 |
| 2023 | 1 | 2 |
| 2024 | 0 | 3 |
| 2025 | 0 | 1 |
| 2026 | 0 | 2 |
By publication year. Applications have been published since 2001. 2026 runs to 8 Oct.
Recent patents
- Integrated kraft pulp mill and thermochemical conversion system5 Dec 2023US 11,834,783 B2Canfor Pulp Ltd.
- Process for the purification of alcohol-containing solvents13 Dec 2022US 11,525,107 B2SAFECHEM Europe GmbH
- Method for producing 3,5-dihydroxy-4-methoxybenzyl alcohol from plankton23 Aug 2022US 11,421,252 B2Watanabe Oyster Laboratory Co., Ltd.
- Process to produce a mono vinyl ether2 Aug 2022US 11,401,227 B2BASF SE
- Integrated Kraft pulp mill and thermochemical conversion system19 Apr 2022US 11,306,435 B2Canfor Pulp Ltd.
- Composition containing fluorine-containing monomer and fluoride ions, method for producing fluorine-containing monomer having reduced fluoride ion content, and method for purifying fluorine-containing monomer7 May 2026US 2026/0125355 A1Daikin Industries, Ltd.
- Method for producing composition containing purified fluorine-containing ether compound5 Mar 2026US 2026/0062372 A1Daikin Industries, Ltd.
- Method for producing composition containing purified fluorine-containing ether compound6 Feb 2025US 2025/0042830 A1Daikin Industries, Ltd.
- Isolation of dialkylene phenolic glycol ether14 Nov 2024US 2024/0376034 A1Dow Global Technologies LLC
- Integrated kraft pulp mill and thermochemical conversion system28 Mar 2024US 2024/0102241 A1Canfor Pulp Ltd.
Most cited
By later US patents
- Purification of polyols prepared using double metal cyanide complex catalysts65US 4,721,818 AAtlantic Richfield Company · 1988
- Ester-free ethers28US 5,698,747 AExxon Chemical Patents Inc. · 1997
- Method for improving the color of MTBE, ETBE and TAME28US 5,847,224 AGlobal Octanes Corporation · 1998
- Process for purifying polyols made with double metal cyanide catalysts22US 5,248,833 AARCO Chemical Technology, L. P. · 1993
- Gas chromatographic analysis of fluoromethyl-1,1,1,3,3,3-hexafluoroisopropyl ether21US 5,679,576 ACentral Glass Company, Limited · 1997