C07C 29/78
By condensation or crystallisation
Official title: by condensation or crystallisation
C07C29/78 (By condensation or crystallisation) appears on 123 US grants and 120 published applications in this corpus.
Search patents in C07C- Granted patents
- 123
- Published applications
- 120
- Assignees
- 108
- Inventors
- 383
- Latest grant
- 4 Aug 2026
Filings by year
| Year | Granted patents | Published applications |
|---|---|---|
| 1976 | 1 | 0 |
| 1977 | 1 | 0 |
| 1978 | 0 | 0 |
| 1979 | 1 | 0 |
| 1980 | 1 | 0 |
| 1981 | 3 | 0 |
| 1982 | 1 | 0 |
| 1983 | 2 | 0 |
| 1984 | 1 | 0 |
| 1985 | 1 | 0 |
| 1986 | 2 | 0 |
| 1987 | 2 | 0 |
| 1988 | 0 | 0 |
| 1989 | 2 | 0 |
| 1990 | 0 | 0 |
| 1991 | 2 | 0 |
| 1992 | 1 | 0 |
| 1993 | 0 | 0 |
| 1994 | 0 | 0 |
| 1995 | 1 | 0 |
| 1996 | 0 | 0 |
| 1997 | 1 | 0 |
| 1998 | 1 | 0 |
| 1999 | 3 | 0 |
| 2000 | 4 | 0 |
| 2001 | 2 | 0 |
| 2002 | 1 | 0 |
| 2003 | 1 | 2 |
| 2004 | 1 | 0 |
| 2005 | 0 | 1 |
| 2006 | 1 | 2 |
| 2007 | 0 | 1 |
| 2008 | 1 | 4 |
| 2009 | 1 | 2 |
| 2010 | 2 | 6 |
| 2011 | 2 | 7 |
| 2012 | 5 | 4 |
| 2013 | 2 | 8 |
| 2014 | 5 | 1 |
| 2015 | 7 | 7 |
| 2016 | 4 | 7 |
| 2017 | 2 | 4 |
| 2018 | 4 | 1 |
| 2019 | 5 | 7 |
| 2020 | 8 | 13 |
| 2021 | 6 | 8 |
| 2022 | 5 | 7 |
| 2023 | 9 | 9 |
| 2024 | 8 | 11 |
| 2025 | 6 | 5 |
| 2026 | 4 | 3 |
By publication year. Applications have been published since 2001. 2026 runs to 8 Oct.
Recent patents
- Systems and methods for a refinement processing of xylitol fermentation broth4 Aug 2026US 12,698,249 B2Zhejiang Huakang Pharmaceutical Co., Ltd.
- Process and reaction system for the preparation of methanol16 Jun 2026US 12,655,080 B2Topsoe A/S
- System and method for cooling a methanol reactor effluent vapor stream in methanol production plant26 May 2026US 12,636,630 B2L Air Liquide, Societe Anonyme Pour L'Etude et L'Exploitation des Procedes Georges Claude
- Dihydroxylation of olefins using osmate (VI) salts3 Feb 2026US 12,540,110 B2International Flavors & Fragrances Inc.
- Isobutanol production process2 Dec 2025US 12,486,208 B2China Petroleum & Chemical Corporation
- Method of preparing isopropyl alcohol6 Aug 2026US 2026/0225980 A1LG Chem.Ltd.
- Improved energy efficiency of methanol production from co230 Jul 2026US 2026/0217632 A1Cri, Hf
- Process and reaction system for the preparation of methanol23 Jul 2026US 2026/0209148 A1Topsoe A/S
- Continuous ion exchange and esterification of fermented malonic acid28 Aug 2025US 2025/0269366 A1Lygos, Inc.
- Methanol distillation system with enhancements for improved efficiency24 Jul 2025US 2025/0236577 A1Cri, Hf
Most cited
By later US patents
- Method for purifying (-)-N-isopulegol and citrus perfume composition containing (-)-N-isopulegol obtained by the method90US 5,773,410 ATakasago International Corporation · 1998
- Production of alcohols from synthesis gases35US 4,346,179 AInstitut Francais du Petrole · 1982
- D-mannitol and its preparation18US 6,235,947 B1Bayer Aktiengesellschaft · 2001
- Method and apparatus for producing methanol with hydrocarbon recycling16US 7,642,293 B2Gas Technologies LLC · 2010
- Sorbitol, process for its preparation, and use thereof15US 4,605,794 AMerck Patent GmbH · 1986