B01J 23/30
Tungsten
B01J23/30 (Tungsten) appears on 930 US grants and 1,024 published applications in this corpus.
Search patents in B01J- Granted patents
- 930
- Published applications
- 1,024
- Assignees
- 517
- Inventors
- 2,630
- Latest grant
- 22 Sep 2026
Filings by year
| Year | Granted patents | Published applications |
|---|---|---|
| 1976 | 16 | 0 |
| 1977 | 16 | 0 |
| 1978 | 12 | 0 |
| 1979 | 7 | 0 |
| 1980 | 5 | 0 |
| 1981 | 12 | 0 |
| 1982 | 5 | 0 |
| 1983 | 11 | 0 |
| 1984 | 6 | 0 |
| 1985 | 8 | 0 |
| 1986 | 10 | 0 |
| 1987 | 4 | 0 |
| 1988 | 9 | 0 |
| 1989 | 7 | 0 |
| 1990 | 4 | 0 |
| 1991 | 2 | 0 |
| 1992 | 3 | 0 |
| 1993 | 3 | 0 |
| 1994 | 7 | 0 |
| 1995 | 5 | 0 |
| 1996 | 3 | 0 |
| 1997 | 4 | 0 |
| 1998 | 13 | 0 |
| 1999 | 7 | 0 |
| 2000 | 8 | 0 |
| 2001 | 11 | 4 |
| 2002 | 7 | 13 |
| 2003 | 12 | 12 |
| 2004 | 11 | 19 |
| 2005 | 6 | 21 |
| 2006 | 7 | 18 |
| 2007 | 8 | 23 |
| 2008 | 11 | 25 |
| 2009 | 17 | 40 |
| 2010 | 27 | 47 |
| 2011 | 23 | 52 |
| 2012 | 21 | 44 |
| 2013 | 28 | 48 |
| 2014 | 41 | 51 |
| 2015 | 39 | 65 |
| 2016 | 55 | 61 |
| 2017 | 44 | 56 |
| 2018 | 45 | 76 |
| 2019 | 62 | 64 |
| 2020 | 55 | 61 |
| 2021 | 52 | 54 |
| 2022 | 50 | 55 |
| 2023 | 36 | 46 |
| 2024 | 37 | 30 |
| 2025 | 28 | 26 |
| 2026 | 10 | 13 |
By publication year. Applications have been published since 2001. 2026 runs to 8 Oct.
Recent patents
- Plastic depolymerization using silica based catalysts22 Sep 2026US 12,742,122 B2Basell Poliolefine Italia S.r.l.
- Process for recovering and regenerating a catalyst from ash7 Jul 2026US 12,673,317 B2Avantium Knowledge Centre B.V.
- Olefin production device and olefin production method23 Jun 2026US 12,662,435 B2Mitsubishi Heavy Industries, Ltd.
- Process for producing glycols from carbohydrates and burning waste16 Jun 2026US 12,655,081 B2Avantium Knowledge Centre B.V.
- Processes for preparing C-4 sugars and ketose sugars2 Jun 2026US 12,643,921 B2Archer Daniels Midland Company
- Belly Blade Mounted to Center of Mower Equipment17 Sep 2026US 2026/0275210 A1
- Heterogeneous catalyst with dual catalytic centers, and preparation method and use thereof27 Aug 2026US 2026/0249279 A1China Petroleum & Chemical Corporation
- Oxidative coupling catalyst, method for producing oxidative coupling catalyst, and method for producing hydrocarbons6 Aug 2026US 2026/0225078 A1Mitsubishi Heavy Industries, Ltd.
- Catalyst and method for manufacturing the same, and method for manufacturing unsaturated nitrile or alkene25 Jun 2026US 2026/0175203 A1Asahi Kasei Kabushiki Kaisha
- Method for photocatalytic degradation of plastic materials under visible light14 May 2026US 2026/0131312 A1
Most cited
By later US patents
- Catalytic process for reducing nitrogen oxides to nitrogen110US 4,085,193 ABabcock-Hitachi Kabushiki Kaisha · 1978
- Process for oxydehydrogenation of ethane to ethylene99US 4,524,236 AUnion Carbide Corporation · 1985
- Supported catalyst of increased resistance to poisons, useful for hydrotreating metal-containing oil fractions73US 4,499,203 ASociete Francaise des Produits pour Catalyse Pro-Catalyse · 1985
- Polymerization catalyst for olefines73US 5,290,748 ANeste Oy · 1994
- Crystalline zeolite and method of preparing same71US 4,046,859 AMobil Oil Corporation · 1977