C10G 53/02
Plural serial stages only
Official title: plural serial stages only
C10G53/02 (Plural serial stages only) appears on 604 US grants and 723 published applications in this corpus.
Search patents in C10G- Granted patents
- 604
- Published applications
- 723
- Assignees
- 307
- Inventors
- 1,661
- Latest grant
- 6 Oct 2026
Filings by year
| Year | Granted patents | Published applications |
|---|---|---|
| 1976 | 2 | 0 |
| 1977 | 1 | 0 |
| 1978 | 4 | 0 |
| 1979 | 1 | 0 |
| 1980 | 3 | 0 |
| 1981 | 2 | 0 |
| 1982 | 3 | 0 |
| 1983 | 1 | 0 |
| 1984 | 5 | 0 |
| 1985 | 7 | 0 |
| 1986 | 3 | 0 |
| 1987 | 1 | 0 |
| 1988 | 2 | 0 |
| 1989 | 6 | 0 |
| 1990 | 2 | 0 |
| 1991 | 9 | 0 |
| 1992 | 3 | 0 |
| 1993 | 4 | 0 |
| 1994 | 3 | 0 |
| 1995 | 3 | 0 |
| 1996 | 5 | 0 |
| 1997 | 3 | 0 |
| 1998 | 3 | 0 |
| 1999 | 5 | 0 |
| 2000 | 3 | 0 |
| 2001 | 2 | 4 |
| 2002 | 7 | 10 |
| 2003 | 9 | 8 |
| 2004 | 4 | 14 |
| 2005 | 2 | 9 |
| 2006 | 9 | 13 |
| 2007 | 6 | 11 |
| 2008 | 6 | 8 |
| 2009 | 5 | 18 |
| 2010 | 9 | 21 |
| 2011 | 8 | 17 |
| 2012 | 13 | 26 |
| 2013 | 22 | 33 |
| 2014 | 20 | 49 |
| 2015 | 34 | 54 |
| 2016 | 26 | 33 |
| 2017 | 32 | 50 |
| 2018 | 45 | 42 |
| 2019 | 36 | 52 |
| 2020 | 47 | 45 |
| 2021 | 43 | 39 |
| 2022 | 38 | 42 |
| 2023 | 30 | 40 |
| 2024 | 25 | 30 |
| 2025 | 34 | 34 |
| 2026 | 8 | 21 |
By publication year. Applications have been published since 2001. 2026 runs to 8 Oct.
Subgroups
Granted patents
Recent patents
- Systems and methods for removal of halogenated contaminants from pyrolysis oil by inert gas purging6 Oct 2026US 12,753,352 B2Sabic Global Technologies B.V.
- Method and system for producing refined hydrocarbons from waste plastics23 Jun 2026US 12,662,638 B2SK Innovation Co., Ltd.
- Method and apparatus for desulfurization and separation of catalytically cracked light product16 Jun 2026US 12,655,360 B2China Petroleum & Chemical Corporation
- Hydrometallurgical recovery method for nickel sulfate26 May 2026US 12,637,736 B2Ecopro Materials Co., Ltd.
- Process for removing contaminants from crude oil7 Apr 2026US 12,595,426 B2Shell USA, Inc.
- A process for purifying a pyrolysis oil1 Oct 2026US 2026/0297440 A1Base SE
- Method for the purification of a plastic liquefaction oil composition in a turbulent flow, and use thereof3 Sep 2026US 2026/0258307 A1Totalenergies Onetech
- Method for obtaining a wax from a pyrolysis residue13 Aug 2026US 2026/0234480 A1Omv Downstream GmbH
- Pyrolysis oil purification6 Aug 2026US 2026/0226351 A1Borealis AG
- Process for removing contaminants from waste plastics oil6 Aug 2026US 2026/0226354 A1Shell USA, Inc.
Most cited
By later US patents
- Continuous in-situ combination process for upgrading heavy oil85US 5,695,632 AExxon Research & Engineering Co. · 1997
- Process of removing oxygenated contaminants from an olefin composition82US 6,764,602 B2ExxonMobil Chemical Patents Inc. · 2004
- Process for upgrading diesel oils76US 4,746,420 AREI Technologies, Inc. · 1988
- Process for upgrading heavy crude oil production67US 5,948,242 AUnipure Corporation · 1999
- Preparation of components for refinery blending of transportation fuels62US 6,827,845 B2BP Corporation North America Inc. · 2004