B01J 2523/49
Hafnium
B01J2523/49 (Hafnium) appears on 9 US grants and 12 published applications in this corpus.
Search patents in B01J- Granted patents
- 9
- Published applications
- 12
- Assignees
- 12
- Inventors
- 39
- Latest grant
- 30 Sep 2025
Filings by year
| Year | Granted patents | Published applications |
|---|---|---|
| 2011 | 0 | 1 |
| 2012 | 0 | 0 |
| 2013 | 0 | 0 |
| 2014 | 0 | 0 |
| 2015 | 0 | 0 |
| 2016 | 1 | 0 |
| 2017 | 0 | 0 |
| 2018 | 0 | 1 |
| 2019 | 0 | 1 |
| 2020 | 1 | 1 |
| 2021 | 1 | 0 |
| 2022 | 0 | 2 |
| 2023 | 0 | 1 |
| 2024 | 2 | 4 |
| 2025 | 4 | 1 |
By publication year.
Recent patents
- High entropy rare earth oxides for emissions control30 Sep 2025US 12,427,477 B2Ford Global Technologies, LLC
- Catalyst-containing material29 Jul 2025US 12,370,528 B2Aerojet Rocketdyne, Inc.
- Ammonia decomposition catalyst systems13 May 2025US 12,297,108 B2University of South Carolina
- Organometallic complex, olefin polymerization catalyst system and polymerization process15 Apr 2025US 12,275,751 B2NOVA Chemicals (International) S.A.
- Organometallic complex, olefin polymerization catalyst system and polymerization process4 Jun 2024US 11,999,763 B2NOVA Chemicals (International) S.A.
- Organometallic complex, olefin polymerization catalyst system and polymerization process14 Aug 2025US 2025/0257084 A1NOVA Chemicals (International) S.A.
- Grain boundary and surface-doped rare earth manganese-zirconium composite compound and preparation method and use thereof28 Nov 2024US 2024/0390878 A1Grirem Advanced Materials Co., Ltd.
- Organometallic complex, olefin polymerization catalyst system and polymerization process5 Sep 2024US 2024/0294560 A1NOVA Chemicals (International) S.A.
- Ammonia decomposition catalyst systems25 Apr 2024US 2024/0132348 A1University of South Carolina
- Organometallic complex, olefin polymerization catalyst system and polymerization process18 Apr 2024US 2024/0124502 A1NOVA Chemicals (International) S.A.
Most cited
By later US patents
- Procatalyst and polymerization process using the same3US 10,870,713 B2Dow Global Technologies LLC · 2020
- Process for oligomerization of olefins that uses a catalytic composition that comprises an organometallic complex that contains a phenoxy ligand that is functionalized by a heteroatom2US 9,260,358 B2Ifp Energies Nouvelles · 2016