C07C 7/005
Processes comprising at least two steps in series
Official title: {Processes comprising at least two steps in series}
C07C7/005 (Processes comprising at least two steps in series) appears on 776 US grants and 718 published applications in this corpus.
Search patents in C07C- Granted patents
- 776
- Published applications
- 718
- Assignees
- 290
- Inventors
- 1,865
- Latest grant
- 15 Sep 2026
Filings by year
| Year | Granted patents | Published applications |
|---|---|---|
| 1976 | 8 | 0 |
| 1977 | 13 | 0 |
| 1978 | 21 | 0 |
| 1979 | 8 | 0 |
| 1980 | 8 | 0 |
| 1981 | 14 | 0 |
| 1982 | 4 | 0 |
| 1983 | 7 | 0 |
| 1984 | 6 | 0 |
| 1985 | 5 | 0 |
| 1986 | 8 | 0 |
| 1987 | 12 | 0 |
| 1988 | 7 | 0 |
| 1989 | 3 | 0 |
| 1990 | 4 | 0 |
| 1991 | 3 | 0 |
| 1992 | 6 | 0 |
| 1993 | 9 | 0 |
| 1994 | 7 | 0 |
| 1995 | 6 | 0 |
| 1996 | 4 | 0 |
| 1997 | 10 | 0 |
| 1998 | 12 | 0 |
| 1999 | 10 | 0 |
| 2000 | 6 | 0 |
| 2001 | 4 | 2 |
| 2002 | 16 | 11 |
| 2003 | 6 | 6 |
| 2004 | 5 | 6 |
| 2005 | 5 | 2 |
| 2006 | 3 | 4 |
| 2007 | 3 | 5 |
| 2008 | 3 | 7 |
| 2009 | 2 | 6 |
| 2010 | 4 | 9 |
| 2011 | 7 | 8 |
| 2012 | 7 | 10 |
| 2013 | 7 | 20 |
| 2014 | 14 | 39 |
| 2015 | 23 | 62 |
| 2016 | 43 | 50 |
| 2017 | 38 | 50 |
| 2018 | 56 | 48 |
| 2019 | 50 | 52 |
| 2020 | 50 | 67 |
| 2021 | 55 | 68 |
| 2022 | 60 | 51 |
| 2023 | 38 | 29 |
| 2024 | 31 | 41 |
| 2025 | 27 | 42 |
| 2026 | 18 | 23 |
By publication year. Applications have been published since 2001. 2026 runs to 8 Oct.
Recent patents
- Gas separation system and method for producing methane-enriched gas15 Sep 2026US 12,734,474 B2Ube Corporation
- Method for purifying 1-hexene8 Sep 2026US 12,729,170 B2Sabic Global Technologies B.V.
- System and method for separating a gas mixture25 Aug 2026US 12,714,968 B2Haffmans B.V.
- Method for purifying a feedstock resulting from a method for depolymerizing styrene compounds11 Aug 2026US 12,703,670 B2Compagnie Generale Des Etablissements Michelin
- Dehydrogenation and pyrolysis product recovery with a common C3 splitter4 Aug 2026US 12,698,247 B2Uop LLC
- Systems and methods for using facilitated transport membranes to separate olefins and paraffins8 Oct 2026US 2026/0308087 A1
- Methods for making light olefins by dehydrogenation using catalysts that include manganese17 Sep 2026US 2026/0274771 A1Dow Global Technologies LLC
- Method for upgrading bio-based material and upgraded material10 Sep 2026US 2026/0265614 A1Neste Oyj
- Process for purifying hydrocarbon streams including heterogeneously and homogeneously catalysed reactions3 Sep 2026US 2026/0257976 A1Evonik Oxeno GmbH
- Recovery of styrene monomer from polystyrene27 Aug 2026US 2026/0250218 A1
Most cited
By later US patents
- Process for the separation of landfill gas115US 4,681,612 AKoch Process Systems, Inc. · 1987
- Separating hydrocarbon gases114US 4,617,039 APro-Quip Corporation · 1986
- Process for the separation of mixtures of substances103US 3,969,196 AStudiengesellschaft Kohle mbH · 1976
- Hydrocarbon gas processing100US 5,771,712 AElcor Corporation · 1998
- Process for separating hydrocarbon gas constituents96US 4,687,499 AMcDermott International, Inc. · 1987