C08F 2/008
Cleaning reaction vessels using chemicals
Official title: {cleaning reaction vessels using chemicals (mechanical methods B08B9/08)}
C08F2/008 (Cleaning reaction vessels using chemicals) appears on 18 US grants and 12 published applications in this corpus.
Search patents in C08F- Granted patents
- 18
- Published applications
- 12
- Assignees
- 17
- Inventors
- 53
- Latest grant
- 20 Jan 2026
Filings by year
| Year | Granted patents | Published applications |
|---|---|---|
| 1977 | 1 | 0 |
| 1978 | 0 | 0 |
| 1979 | 0 | 0 |
| 1980 | 0 | 0 |
| 1981 | 0 | 0 |
| 1982 | 1 | 0 |
| 1983 | 0 | 0 |
| 1984 | 0 | 0 |
| 1985 | 0 | 0 |
| 1986 | 1 | 0 |
| 1987 | 0 | 0 |
| 1988 | 0 | 0 |
| 1989 | 0 | 0 |
| 1990 | 1 | 0 |
| 1991 | 1 | 0 |
| 1992 | 0 | 0 |
| 1993 | 1 | 0 |
| 1994 | 0 | 0 |
| 1995 | 0 | 0 |
| 1996 | 1 | 0 |
| 1997 | 1 | 0 |
| 1998 | 0 | 0 |
| 1999 | 0 | 0 |
| 2000 | 1 | 0 |
| 2001 | 0 | 0 |
| 2002 | 0 | 0 |
| 2003 | 0 | 0 |
| 2004 | 1 | 1 |
| 2005 | 0 | 0 |
| 2006 | 0 | 0 |
| 2007 | 0 | 0 |
| 2008 | 0 | 0 |
| 2009 | 0 | 0 |
| 2010 | 0 | 0 |
| 2011 | 0 | 0 |
| 2012 | 0 | 0 |
| 2013 | 0 | 0 |
| 2014 | 0 | 0 |
| 2015 | 0 | 0 |
| 2016 | 0 | 1 |
| 2017 | 1 | 0 |
| 2018 | 0 | 0 |
| 2019 | 0 | 1 |
| 2020 | 0 | 1 |
| 2021 | 1 | 1 |
| 2022 | 0 | 2 |
| 2023 | 3 | 1 |
| 2024 | 2 | 2 |
| 2025 | 0 | 1 |
| 2026 | 1 | 1 |
By publication year. Applications have been published since 2001. 2026 runs to 8 Oct.
Recent patents
- Reactor cleaning process and composition20 Jan 2026US 12,529,019 B2G-3 Chickadee Purchaser, LLC
- Method for cleaning a polymerisation reactor2 Jul 2024US 12,024,572 B2Wacker Chemie AG
- Catalyst composition, cleaning liquid composition containing the same, and method of cleaning polymerization apparatus using the cleaning liquid composition27 Feb 2024US 11,912,811 B2LG Chem.Ltd.
- System and method for improving dump tank purge time13 Jun 2023US 11,673,975 B2Chevron Phillips Chemical Company LP
- Compositions and methods for removing contaminants from plastics processing equipment14 Feb 2023US 11,578,144 B22569924 Ontario Inc.
- Process for the production of superabsorbents23 Jul 2026US 2026/0208158 A1BASF SE
- Process for preparing ethylene polymers in a slurry polymerization13 Feb 2025US 2025/0051497 A1Basell Polyolefine GmbH
- Substrate processing apparatus9 May 2024US 2024/0150500 A1Tokyo Electron Limited
- Reactor cleaning process and composition18 Apr 2024US 2024/0124809 A1The Goodyear Tire & Rubber Company
- System and method for improving dump tank purge time2 Mar 2023US 2023/0061539 A1Chevron Phillips Chemical Company LP
Most cited
By later US patents
- Method of cleaning melt-processing equipment with a thermoplastic polyolefin and a bifunctional siloxane12US 4,976,788 AKimberly-Clark Corporation · 1990
- Method for removing polymer scale deposited on reactor walls and a polymer scale remover agent therefor11US 4,591,391 AShin-Etsu Chemical Co., Ltd. · 1986
- Process for cleaning polymerization reactors8US 4,038,473 AThe B. F. Goodrich Company · 1977
- Method of cleaning of components to which polymers are bonded8US 5,064,487 AFourne Maschinenbau GmbH · 1991
- Reactor drying by addition of compound that lowers boiling point of water8US 6,114,475 AUnion Carbide Chemicals & Plastics Technology Corporation · 2000