C07C 2531/34
Of chromium, molybdenum or tungsten
Official title: of chromium, molybdenum or tungsten
C07C2531/34 (Of chromium, molybdenum or tungsten) appears on 73 US grants and 58 published applications in this corpus.
Search patents in C07C- Granted patents
- 73
- Published applications
- 58
- Assignees
- 49
- Inventors
- 196
- Latest grant
- 3 Oct 2023
Filings by year
| Year | Granted patents | Published applications |
|---|---|---|
| 1976 | 3 | 0 |
| 1977 | 2 | 0 |
| 1978 | 0 | 0 |
| 1979 | 0 | 0 |
| 1980 | 0 | 0 |
| 1981 | 1 | 0 |
| 1982 | 1 | 0 |
| 1983 | 1 | 0 |
| 1984 | 0 | 0 |
| 1985 | 0 | 0 |
| 1986 | 0 | 0 |
| 1987 | 0 | 0 |
| 1988 | 0 | 0 |
| 1989 | 1 | 0 |
| 1990 | 1 | 0 |
| 1991 | 1 | 0 |
| 1992 | 0 | 0 |
| 1993 | 1 | 0 |
| 1994 | 1 | 0 |
| 1995 | 2 | 0 |
| 1996 | 1 | 0 |
| 1997 | 0 | 0 |
| 1998 | 1 | 0 |
| 1999 | 5 | 0 |
| 2000 | 2 | 0 |
| 2001 | 0 | 0 |
| 2002 | 0 | 0 |
| 2003 | 1 | 1 |
| 2004 | 3 | 4 |
| 2005 | 2 | 1 |
| 2006 | 0 | 2 |
| 2007 | 1 | 0 |
| 2008 | 1 | 0 |
| 2009 | 1 | 0 |
| 2010 | 0 | 2 |
| 2011 | 0 | 0 |
| 2012 | 0 | 0 |
| 2013 | 2 | 2 |
| 2014 | 1 | 3 |
| 2015 | 3 | 10 |
| 2016 | 7 | 9 |
| 2017 | 5 | 5 |
| 2018 | 7 | 3 |
| 2019 | 4 | 8 |
| 2020 | 3 | 1 |
| 2021 | 1 | 1 |
| 2022 | 5 | 3 |
| 2023 | 2 | 0 |
| 2024 | 0 | 1 |
| 2025 | 0 | 2 |
By publication year. Applications have been published since 2001.
Recent patents
- Processes for stabilizing antimony catalysts3 Oct 2023US 11,772,081 B2Ascend Performance Materials Operations LLC
- Self cleaning reactor system10 Jan 2023US 11,548,837 B2NOVA Chemicals (International) S.A.
- Process for oligomerization in a cascade of stirred gas-liquid reactors with staged injection of ethylene8 Nov 2022US 11,492,304 B2Ifp Energies Nouvelles
- Catalyst system used in olefin oligomerization and method for olefin oligomerization5 Apr 2022US 11,291,982 B2Public Joint Stock Company "Sibur Holding"
- Method for preparation of a catalyst solution for selective 1-hexene production29 Mar 2022US 11,285,469 B2Sabic Global Technologies B.V.
- Dehydrogenation methods10 Jul 2025US 2025/0223244 A1The Trustees of Boston College
- Selective and long-lived single component heterogeneous ethylene trimerization catalysts enabled by surface lithiation27 Mar 2025US 2025/0100951 A1Uchicago Argonne, LLC
- Bubble Column Reactor29 Aug 2024US 2024/0286102 A1LG Chem.Ltd.
- Processes for stabilizing antimony catalysts12 May 2022US 2022/0143583 A1Ascend Performance Materials Operations LLC
- Antifouling catalyst systems for selective ethylene trimerization14 Apr 2022US 2022/0111375 A1Saudi Arabian Oil Company
Most cited
By later US patents
- System and method for selective trimerization48US 8,658,750 B2ExxonMobil Chemical Patents Inc. · 2014
- Porous microcomposite of perfluorinated ion-exchange polymer and metal oxide, a network of silica, or a network of metal oxide and silica derived via a sol-gel process38US 5,824,622 AE. I. Du Pont de Nemours and Company · 1998
- Tetramerization of olefins30US 7,511,183 B2Sasol Technology (Pty) Ltd · 2009
- Porous microcomposite of metal cation exchanged perfluorinated ion-exchanged polymer and network of metal oxide, silica or metal oxide and silica24US 5,916,837 AE. I. Du Pont de Nemours and Company · 1999
- Aluminosilicate carrier for metathesis catalysts19US 5,883,272 ARWE-DEA Aktiengesellschaft fur Mineraloel und Chemie · 1999