C07C 2523/24
Chromium, molybdenum or tungsten
C07C2523/24 (Chromium, molybdenum or tungsten) appears on 944 US grants and 896 published applications in this corpus.
Search patents in C07C- Granted patents
- 944
- Published applications
- 896
- Assignees
- 374
- Inventors
- 2,139
- Latest grant
- 15 Sep 2026
Filings by year
| Year | Granted patents | Published applications |
|---|---|---|
| 1976 | 16 | 0 |
| 1977 | 16 | 0 |
| 1978 | 12 | 0 |
| 1979 | 16 | 0 |
| 1980 | 19 | 0 |
| 1981 | 8 | 0 |
| 1982 | 8 | 0 |
| 1983 | 11 | 0 |
| 1984 | 7 | 0 |
| 1985 | 11 | 0 |
| 1986 | 20 | 0 |
| 1987 | 12 | 0 |
| 1988 | 10 | 0 |
| 1989 | 12 | 0 |
| 1990 | 9 | 0 |
| 1991 | 10 | 0 |
| 1992 | 8 | 0 |
| 1993 | 7 | 0 |
| 1994 | 13 | 0 |
| 1995 | 8 | 0 |
| 1996 | 11 | 0 |
| 1997 | 7 | 0 |
| 1998 | 15 | 0 |
| 1999 | 15 | 0 |
| 2000 | 12 | 0 |
| 2001 | 14 | 3 |
| 2002 | 10 | 20 |
| 2003 | 24 | 24 |
| 2004 | 15 | 27 |
| 2005 | 6 | 19 |
| 2006 | 18 | 11 |
| 2007 | 5 | 15 |
| 2008 | 8 | 16 |
| 2009 | 8 | 22 |
| 2010 | 13 | 34 |
| 2011 | 14 | 26 |
| 2012 | 14 | 43 |
| 2013 | 22 | 37 |
| 2014 | 30 | 50 |
| 2015 | 40 | 53 |
| 2016 | 26 | 54 |
| 2017 | 36 | 59 |
| 2018 | 50 | 60 |
| 2019 | 65 | 57 |
| 2020 | 53 | 62 |
| 2021 | 43 | 47 |
| 2022 | 39 | 33 |
| 2023 | 34 | 28 |
| 2024 | 27 | 44 |
| 2025 | 20 | 30 |
| 2026 | 17 | 22 |
By publication year. Applications have been published since 2001. 2026 runs to 8 Oct.
Subgroups
Granted patents
Recent patents
- Production of monoaromatic hydrocarbons from hydrocarbon feedstocks15 Sep 2026US 12,735,646 B2King Fahd University of Petroleum and Minerals
- Catalysts and processes for oxidative dehydrogenation of methane and ethane to produce ethylene, ethane, propane, propylene, and other products1 Sep 2026US 12,723,011 B1
- Two-stage preparation process for α,ß-ethylenically unsaturated carboxylic acids and plant for the purpose1 Sep 2026US 12,723,015 B2BASF SE
- Molybdenum-vanadium-iron- and/or molybdenum-vanadium-aluminium-based oxidative dehydrogenation catalyst materials18 Aug 2026US 12,708,893 B2NOVA Chemicals (International) S.A.
- Molybdenum-vanadium-iron- and/or molybdenum-vanadium-aluminium-based oxidative dehydrogenation catalyst materials18 Aug 2026US 12,708,894 B2NOVA Chemicals (International) S.A.
- Oxidative coupling of methane in hysteresis condition8 Oct 2026US 2026/0308085 A1Braskem S/A
- Feed purification in ethane odh process17 Sep 2026US 2026/0274772 A1NOVA Chemicals (International) S.A.
- Catalysts for oxidative dehydrogenation10 Sep 2026US 2026/0264055 A1NOVA Chemicals (International) S.A.
- Isomerization and disproportionation catalyst composition3 Sep 2026US 2026/0257203 A1Shell Oil Company
- Catalyst and process for the dehydrogenation of alkanes to olefins27 Aug 2026US 2026/0249274 A1Dow Global Technologies LLC
Most cited
By later US patents
- Conversion of synthesis gas to hydrocarbon mixtures299US 4,096,163 AMobil Oil Corporation · 1978
- Process for the preparation of middle distillates from syngas162US 4,594,468 AShell Oil Company · 1986
- Methods for manufacturing olefins from lower alkans by oxidative dehydrogenation140US 6,518,476 B1Union Carbide Chemicals & Plastics Technology Corporation · 2003
- Manufacture of synthetic lubricant additives from low molecular weight olefins using boron trifluoride catalysts123US 4,413,156 ATexaco Inc. · 1983
- Processing C4 olefin streams for the maximum production of propylene95US 7,214,841 B2ABB Lummus Global Inc. · 2007