B01J 31/38
Of titanium, zirconium or hafnium
Official title: of titanium, zirconium or hafnium
B01J31/38 (Of titanium, zirconium or hafnium) appears on 259 US grants and 257 published applications in this corpus.
Search patents in B01J- Granted patents
- 259
- Published applications
- 257
- Assignees
- 176
- Inventors
- 780
- Latest grant
- 15 Sep 2026
Filings by year
| Year | Granted patents | Published applications |
|---|---|---|
| 1977 | 2 | 0 |
| 1978 | 1 | 0 |
| 1979 | 4 | 0 |
| 1980 | 2 | 0 |
| 1981 | 1 | 0 |
| 1982 | 1 | 0 |
| 1983 | 1 | 0 |
| 1984 | 3 | 0 |
| 1985 | 2 | 0 |
| 1986 | 1 | 0 |
| 1987 | 0 | 0 |
| 1988 | 0 | 0 |
| 1989 | 4 | 0 |
| 1990 | 2 | 0 |
| 1991 | 0 | 0 |
| 1992 | 0 | 0 |
| 1993 | 0 | 0 |
| 1994 | 2 | 0 |
| 1995 | 3 | 0 |
| 1996 | 2 | 0 |
| 1997 | 1 | 0 |
| 1998 | 6 | 0 |
| 1999 | 1 | 0 |
| 2000 | 5 | 0 |
| 2001 | 12 | 0 |
| 2002 | 7 | 13 |
| 2003 | 10 | 6 |
| 2004 | 7 | 6 |
| 2005 | 3 | 6 |
| 2006 | 6 | 4 |
| 2007 | 4 | 2 |
| 2008 | 2 | 5 |
| 2009 | 2 | 4 |
| 2010 | 5 | 6 |
| 2011 | 2 | 11 |
| 2012 | 3 | 8 |
| 2013 | 7 | 7 |
| 2014 | 3 | 15 |
| 2015 | 8 | 19 |
| 2016 | 10 | 20 |
| 2017 | 15 | 15 |
| 2018 | 16 | 14 |
| 2019 | 18 | 24 |
| 2020 | 18 | 19 |
| 2021 | 14 | 8 |
| 2022 | 13 | 9 |
| 2023 | 7 | 14 |
| 2024 | 11 | 9 |
| 2025 | 6 | 8 |
| 2026 | 6 | 5 |
By publication year. Applications have been published since 2001. 2026 runs to 8 Oct.
Recent patents
- Method for producing catalyst for polymerization of olefin, catalyst for polymerization of olefin, and method for producing polymer of olefin15 Sep 2026US 12,735,525 B2Toho Titanium Co., Ltd.
- Carrier for olefin polymerization catalyst and application thereof, catalyst for olefin polymerization and application thereof, and olefin polymerization method14 Jul 2026US 12,679,907 B2Beijing Research Institute of Chemical Industry, China Petroleum & Chemical Corporation
- Deodorization fiber and manufacture method thereof2 Jun 2026US 12,643,092 B2Taiwan Textile Research Institute
- Curing catalyst used for curing of polymer, production method for said curing catalyst, mositure-curable composition, and production method for cured product10 Mar 2026US 12,570,771 B2Nitto Kasei Co., Ltd.
- Composition for coating an overhead conductor3 Mar 2026US 12,565,598 B2Cable Coatings Limited
- Resin member1 Oct 2026US 2026/0295563 A1Nissan Motor Co., Ltd.
- Surface-catalytically finished polymer fibres and/or polymeric sheets, method for surface-catalytically finishing same, and use thereof for producing an air purification filter3 Sep 2026US 2026/0257204 A1Hochschule Niederrhein
- High porosity fluorided silica-coated alumina activator-supports and uses thereof in metallocene-based catalyst systems for olefin polymerization30 Jul 2026US 2026/0217873 A1Chevron Phillips Chemical Company LP
- 3D Metal, Metal Oxides, And Semiconductor Nanoscale Frameworks Through Templating Of DNA-Programmable Lattice Scaffolds11 Jun 2026US 2026/0158477 A1
- Titanium dioxide asphalt compositions and methods for their application9 Apr 2026US 2026/0097395 A1CoolSeal LLC
Most cited
By later US patents
- Compositions that can produce polymers334US 6,300,271 B1Phillips Petroleum Company · 2001
- Organometal catalyst compositions329US 6,355,594 B1Phillips Petroleum Company · 2002
- Organometal compound catalyst275US 6,548,442 B1Phillips Petroleum Company · 2003
- Compositions that can produce polymers252US 7,601,665 B2Chevron Phillips Chemical Company LP · 2009
- Process for producing polymers93US 6,831,141 B2Phillips Petroleum Company · 2004