C07C 31/18
Polyhydroxylic acyclic alcohols
C07C31/18 (Polyhydroxylic acyclic alcohols) appears on 482 US grants and 439 published applications in this corpus.
Search patents in C07C- Granted patents
- 482
- Published applications
- 439
- Assignees
- 287
- Inventors
- 1,222
- Latest grant
- 8 Sep 2026
Filings by year
| Year | Granted patents | Published applications |
|---|---|---|
| 1976 | 12 | 0 |
| 1977 | 11 | 0 |
| 1978 | 2 | 0 |
| 1979 | 2 | 0 |
| 1980 | 6 | 0 |
| 1981 | 5 | 0 |
| 1982 | 4 | 0 |
| 1983 | 19 | 0 |
| 1984 | 16 | 0 |
| 1985 | 5 | 0 |
| 1986 | 6 | 0 |
| 1987 | 4 | 0 |
| 1988 | 2 | 0 |
| 1989 | 4 | 0 |
| 1990 | 4 | 0 |
| 1991 | 7 | 0 |
| 1992 | 8 | 0 |
| 1993 | 7 | 0 |
| 1994 | 8 | 0 |
| 1995 | 7 | 0 |
| 1996 | 5 | 0 |
| 1997 | 5 | 0 |
| 1998 | 6 | 0 |
| 1999 | 6 | 0 |
| 2000 | 3 | 0 |
| 2001 | 6 | 2 |
| 2002 | 5 | 2 |
| 2003 | 4 | 4 |
| 2004 | 1 | 5 |
| 2005 | 1 | 3 |
| 2006 | 5 | 6 |
| 2007 | 2 | 3 |
| 2008 | 4 | 5 |
| 2009 | 2 | 8 |
| 2010 | 6 | 7 |
| 2011 | 5 | 7 |
| 2012 | 10 | 11 |
| 2013 | 6 | 12 |
| 2014 | 7 | 20 |
| 2015 | 14 | 21 |
| 2016 | 13 | 17 |
| 2017 | 15 | 41 |
| 2018 | 23 | 48 |
| 2019 | 35 | 50 |
| 2020 | 36 | 36 |
| 2021 | 39 | 37 |
| 2022 | 22 | 26 |
| 2023 | 23 | 23 |
| 2024 | 11 | 8 |
| 2025 | 14 | 20 |
| 2026 | 9 | 17 |
By publication year. Applications have been published since 2001. 2026 runs to 8 Oct.
Subgroups
Granted patents
Recent patents
- 1,3-butylene glycol product8 Sep 2026US 12,728,083 B2Daicel Corporation
- Diol composition and polyester1 Sep 2026US 12,723,130 B2Toray Industries, Inc.
- Process for purification of recovered glycol from chemical recycling of waste polyester7 Jul 2026US 12,673,910 B2Auriga Polymers, Inc.
- Separation process for the production of C5 or C6 alkanediol26 May 2026US 12,637,401 B2Johnson Matthey Davy Technologies Limited
- Process for preparing propylene and polypropylene from CO212 May 2026US 12,624,462 B2Volkswagen Aktiengesellschaft
- Copper silicate-based catalyst and preparation method therefor8 Oct 2026US 2026/0307055 A1LG Chem.Ltd.
- Lithography method8 Oct 2026US 2026/0310079 A1Taiwan Semiconductor Manufacturing Company.Ltd
- 1,6-hexanediol composition and polymer1 Oct 2026US 2026/0297002 A1DIC Corporation
- Polyethylene terephthalate produced from used tires1 Oct 2026US 2026/0297247 A1
- Catalyst for simultaneous conversion reaction of sugar to alcohol and acid and method for simultaneously producing alcohol and acid from sugar by using same16 Jul 2026US 2026/0199878 A1Korea Research Institute of Chemical Technology
Most cited
By later US patents
- Pulverulent mannitol and process for preparing it66US 6,743,447 B2Roquette Freres · 2004
- Electrically hydrolyzed salines as microbiocides for in vitro treatment of contaminated fluids containing blood62US 5,622,848 AMedical Discoveries, Inc. · 1997
- Melt cocrystallized sorbitol/xylitol compositions50US 5,158,789 AICI Americas Inc. · 1992
- Guanine derivatives44US 5,075,445 ABeecham Group Limited · 1991
- Higher aldehyde separation process43US 5,196,596 AUnion Carbide Chemicals & Plastics Technology Corporation · 1993