C07C 7/20
Use of additives
Official title: Use of additives, e.g. for stabilisation
C07C7/20 (Use of additives) appears on 338 US grants and 236 published applications in this corpus.
Search patents in C07C- Granted patents
- 338
- Published applications
- 236
- Assignees
- 152
- Inventors
- 598
- Latest grant
- 4 Aug 2026
Filings by year
| Year | Granted patents | Published applications |
|---|---|---|
| 1976 | 9 | 0 |
| 1977 | 9 | 0 |
| 1978 | 4 | 0 |
| 1979 | 9 | 0 |
| 1980 | 2 | 0 |
| 1981 | 5 | 0 |
| 1982 | 3 | 0 |
| 1983 | 7 | 0 |
| 1984 | 14 | 0 |
| 1985 | 7 | 0 |
| 1986 | 3 | 0 |
| 1987 | 5 | 0 |
| 1988 | 2 | 0 |
| 1989 | 3 | 0 |
| 1990 | 6 | 0 |
| 1991 | 4 | 0 |
| 1992 | 1 | 0 |
| 1993 | 4 | 0 |
| 1994 | 6 | 0 |
| 1995 | 9 | 0 |
| 1996 | 9 | 0 |
| 1997 | 7 | 0 |
| 1998 | 8 | 0 |
| 1999 | 9 | 0 |
| 2000 | 5 | 0 |
| 2001 | 9 | 3 |
| 2002 | 8 | 5 |
| 2003 | 6 | 7 |
| 2004 | 6 | 12 |
| 2005 | 3 | 5 |
| 2006 | 4 | 10 |
| 2007 | 2 | 5 |
| 2008 | 2 | 5 |
| 2009 | 2 | 11 |
| 2010 | 6 | 6 |
| 2011 | 9 | 9 |
| 2012 | 10 | 14 |
| 2013 | 9 | 21 |
| 2014 | 16 | 19 |
| 2015 | 11 | 14 |
| 2016 | 11 | 17 |
| 2017 | 10 | 2 |
| 2018 | 10 | 7 |
| 2019 | 8 | 16 |
| 2020 | 11 | 14 |
| 2021 | 7 | 5 |
| 2022 | 10 | 6 |
| 2023 | 2 | 8 |
| 2024 | 5 | 3 |
| 2025 | 10 | 7 |
| 2026 | 1 | 5 |
By publication year. Applications have been published since 2001. 2026 runs to 8 Oct.
Recent patents
- Integrated stabilizer in deisobutanizer for isomerization of hydrocarbons and product separation4 Aug 2026US RE50,978 E1Kellogg Brown & Root LLC
- Catalytic method for acrylate production21 Oct 2025US 12,448,346 B1King Fahd University of Petroleum and Minerals
- Methods for reducing fouling in upgrading reactors7 Oct 2025US 12,435,015 B2Dow Global Technologies LLC
- Abating unwanted emulsion polymerization during extractive distillation of conjugated diene monomers30 Sep 2025US 12,428,360 B2Ecolab USA Inc.
- Antifoulant compositions for high-severity processing of vinylic monomer streams1 Jul 2025US 12,344,581 B2Ecolab USA Inc.
- Antipolymerant compositions and methods for inhibiting fouling using the compositions6 Aug 2026US 2026/0226200 A1Ecolab USA Inc.
- Methods for depolymerization of substituted vinyl polymers4 Jun 2026US 2026/0152617 A1Board of Trustees of Michigan State University
- Thermally stable compositions and use thereof as antifoulants16 Apr 2026US 2026/0103650 A1Ecolab USA Inc.
- Stabilizer additives for plastic-derived synthetic feedstock26 Feb 2026US 2026/0055037 A1Ecolab USA Inc.
- Polymerization inhibitors for high temperature ethylene fractionation trains29 Jan 2026US 2026/0028467 A1Bl Technologies, Inc.
Most cited
By later US patents
- Distillative separations of gas mixtures containing methane, carbon dioxide and other components129US 4,462,814 AKoch Process Systems, Inc. · 1984
- Cryogenic distillative separation of acid gases from methane111US 4,318,723 AKoch Process Systems, Inc. · 1982
- Inhibiting polymerization of vinyl aromatic monomers58US 5,254,760 ACiba-Geigy Corporation · 1993
- Method of transporting a hydrate forming fluid51US 4,915,176 AInstitut Francais du Petrole · 1990
- Polymerization inhibitor for vinyl aromatic compounds40US 4,105,506 ACosden Technology, Inc. · 1978