C07C 47/04
Formaldehyde
C07C47/04 (Formaldehyde) appears on 27 US grants and 34 published applications in this corpus.
Search patents in C07C- Granted patents
- 27
- Published applications
- 34
- Assignees
- 32
- Inventors
- 80
- Latest grant
- 25 Feb 2025
Filings by year
| Year | Granted patents | Published applications |
|---|---|---|
| 1979 | 1 | 0 |
| 1980 | 0 | 0 |
| 1981 | 0 | 0 |
| 1982 | 0 | 0 |
| 1983 | 1 | 0 |
| 1984 | 0 | 0 |
| 1985 | 0 | 0 |
| 1986 | 0 | 0 |
| 1987 | 0 | 0 |
| 1988 | 0 | 0 |
| 1989 | 0 | 0 |
| 1990 | 0 | 0 |
| 1991 | 0 | 0 |
| 1992 | 0 | 0 |
| 1993 | 0 | 0 |
| 1994 | 0 | 0 |
| 1995 | 0 | 0 |
| 1996 | 0 | 0 |
| 1997 | 0 | 0 |
| 1998 | 0 | 0 |
| 1999 | 0 | 0 |
| 2000 | 0 | 0 |
| 2001 | 0 | 0 |
| 2002 | 1 | 0 |
| 2003 | 0 | 1 |
| 2004 | 0 | 0 |
| 2005 | 0 | 1 |
| 2006 | 0 | 1 |
| 2007 | 2 | 1 |
| 2008 | 0 | 0 |
| 2009 | 0 | 1 |
| 2010 | 2 | 0 |
| 2011 | 1 | 1 |
| 2012 | 0 | 0 |
| 2013 | 0 | 0 |
| 2014 | 0 | 7 |
| 2015 | 0 | 0 |
| 2016 | 3 | 1 |
| 2017 | 3 | 1 |
| 2018 | 1 | 3 |
| 2019 | 3 | 2 |
| 2020 | 2 | 7 |
| 2021 | 4 | 3 |
| 2022 | 0 | 1 |
| 2023 | 0 | 0 |
| 2024 | 1 | 0 |
| 2025 | 2 | 1 |
| 2026 | 0 | 2 |
By publication year. Applications have been published since 2001. 2026 runs to 8 Oct.
Recent patents
- Systems and methods for formaldehyde control25 Feb 2025US 12,234,410 B2Kerry Group Services International Limited
- Process for converting methanol to formaldehyde21 Jan 2025US 12,202,793 B2Celanese International Corporation
- Catalyst with a core-shell structure for methane oxidation, method of preparing the same and method of oxidizing methane using the same8 Oct 2024US 12,109,552 B2Ajou University Industry-Academic Cooperation Foundation
- Electrolysis system for carbon dioxide14 Dec 2021US 11,198,942 B2Siemens Energy Global GmbH & Co. KG
- Methods for preparing formaldehyde from carbon dioxide7 Sep 2021US 11,111,199 B2The Trustees of Columbia University in the City of New York
- Carbon capture system for production of soda ash, baking soda, methanol, & formaldehyde5 Mar 2026US 2026/0061360 A1Agc Carbon Inc.
- Mixed metal air batteries5 Mar 2026US 2026/0066268 A1AGC Power Inc.
- Composition, and method for producing trioxane using same2 Oct 2025US 2025/0304548 A1Mitsubishi Gas Chemical Company, Inc.
- Process for converting methanol to formaldehyde8 Dec 2022US 2022/0388936 A1Celanese International Corporation
- Catalyst with a core-shell structure for methane oxidation, method of preparing the same and method of oxidizing methane using the same16 Dec 2021US 2021/0387166 A1Ajou University Industry-Academic Cooperation Foundation
Most cited
By later US patents
- Alcohol production11US 4,144,401 AChevron Research Company · 1979
- Process for preparing stable aqueous suspensions of formaldehyde5US 4,390,727 AMontedison S.p.A. · 1983
- Optimized process for preparing methacrylic acid4US 10,125,077 B2Evonik Röhm GmbH · 2018
- Integrated process for producing cyclic acetals and oxymethylene polymers3US 9,469,624 B2Ticona LLC · 2016
- Process for recycling polyacetals2US 9,365,537 B2Ticona LLC · 2016