C07C 29/90
Using hydrogen only
Official title: using hydrogen only
C07C29/90 (Using hydrogen only) appears on 47 US grants and 51 published applications in this corpus.
Search patents in C07C- Granted patents
- 47
- Published applications
- 51
- Assignees
- 34
- Inventors
- 140
- Latest grant
- 9 Jun 2026
Filings by year
| Year | Granted patents | Published applications |
|---|---|---|
| 1980 | 1 | 0 |
| 1981 | 0 | 0 |
| 1982 | 0 | 0 |
| 1983 | 1 | 0 |
| 1984 | 0 | 0 |
| 1985 | 0 | 0 |
| 1986 | 0 | 0 |
| 1987 | 1 | 0 |
| 1988 | 0 | 0 |
| 1989 | 0 | 0 |
| 1990 | 0 | 0 |
| 1991 | 0 | 0 |
| 1992 | 0 | 0 |
| 1993 | 0 | 0 |
| 1994 | 0 | 0 |
| 1995 | 1 | 0 |
| 1996 | 0 | 0 |
| 1997 | 0 | 0 |
| 1998 | 0 | 0 |
| 1999 | 0 | 0 |
| 2000 | 0 | 0 |
| 2001 | 2 | 0 |
| 2002 | 0 | 0 |
| 2003 | 1 | 2 |
| 2004 | 0 | 3 |
| 2005 | 1 | 2 |
| 2006 | 4 | 0 |
| 2007 | 1 | 1 |
| 2008 | 0 | 0 |
| 2009 | 0 | 0 |
| 2010 | 0 | 1 |
| 2011 | 0 | 2 |
| 2012 | 2 | 9 |
| 2013 | 0 | 3 |
| 2014 | 7 | 4 |
| 2015 | 9 | 3 |
| 2016 | 2 | 1 |
| 2017 | 2 | 1 |
| 2018 | 2 | 4 |
| 2019 | 3 | 2 |
| 2020 | 1 | 2 |
| 2021 | 2 | 0 |
| 2022 | 0 | 0 |
| 2023 | 0 | 3 |
| 2024 | 2 | 3 |
| 2025 | 1 | 3 |
| 2026 | 1 | 2 |
By publication year. Applications have been published since 2001. 2026 runs to 8 Oct.
Recent patents
- Process for making ethers from ethanol9 Jun 2026US 12,649,886 B2The Trustees of Princeton University
- Process for treating polyester methanolysis depolymerization product streams7 Oct 2025US 12,435,024 B2Eastman Chemical Company
- Method for preparing liquid maltitol and liquid polyols from a raffinate including maltitol18 Jun 2024US 12,012,430 B2Zhejiang Huakang Pharmaceutical Co., Ltd.
- Systems and methods for co-producing xylitol and caramel pigment by utilizing xylose mother liquid11 Jun 2024US 12,006,281 B2Zhejiang Huakang Pharmaceutical Co., Ltd.
- Process for the preparation of deuterated ethanol from D2O16 Mar 2021US 10,947,170 B2Deuteria Beverages, LLC
- Purification technologies12 Feb 2026US 2026/0042723 A1Zymochem, Inc.
- Process device using ipa and method thereof22 Jan 2026US 2026/0022087 A1Shanghai Huali Integrated Circuit Corporation
- Product 1,3-butylene glycol15 May 2025US 2025/0154088 A1KH Neochem Co., Ltd.
- Production method of product 1,3-butylene glycol24 Apr 2025US 2025/0129002 A1KH Neochem Co., Ltd.
- Process for making ethers from ethanol27 Mar 2025US 2025/0101326 A1The Trustees of Princeton University
Most cited
By later US patents
- Process for the preparation of ethanol161US 4,395,576 AShell Oil Company · 1983
- Process for the reductive cleavage of linear and cyclic acetals especially formals20US 6,265,623 B1Perstorp Specialty Chemicals AB · 2001
- Reducing color formers in 1,4-butanediol18US 4,213,000 AE. I. Du Pont de Nemours and Company · 1980
- Hydrogenation of biochemical derived 1,3 -propanediol17US 7,098,368 B2E. I. Du Pont de Nemours and Company · 2006
- Method for reducing the content of acetals or ketals in alcohol-containing reaction mixtures16US 6,232,512 B1Degussa-Huls AG · 2001