Asymmetrical metallocenes having an isobutyl cyclopentadienyl ligand
US-2026028366-A1 · Jan 29, 2026 · US
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Pearson David M patents
Pearson David M is listed as an inventor on 82 patents in our database. Major assignees and classification codes are summarized below.
| Metric | Value |
|---|---|
| Inventor | Pearson David M |
| Total patents | 82 |
| First publication | Oct 27, 2016 |
| Latest publication | Jan 29, 2026 |
Notable patents
Publications ranked by popularity score, then publication date.
Alkene functionalized activators and their use in electrical applications
US-12497471-B2 · Dec 16, 2025 · US
Spray-dried catalysts containing a germanium-bridged bis-biphenyl-phenoxy organometallic compound for making ethylene-based copolymers
US-12492270-B2 · Dec 9, 2025 · US
Asymmettrical zirconium metallocenes having an isobutyl cyclopentadienyl ligand
US-2025368673-A1 · Dec 4, 2025 · US
Transition metal catalysts for olefin polymerization
US-12473383-B2 · Nov 18, 2025 · US
Polymerization of ethylene in solution processes using a Ziegler-Natta catalyst and a hydrogenation procatalyst
US-12466901-B2 · Nov 11, 2025 · US
Biphenylphenol polymerization catalysts
US-12428504-B2 · Sep 30, 2025 · US
Catalyst systems and processes for producing polyethylene using the same
US-12428502-B2 · Sep 30, 2025 · US
Polymerization catalysts for production of polyethylene with high molecular weight
US-12365750-B2 · Jul 22, 2025 · US
Polymerization of ethylene in solution processes using a Ziegler-Natta catalyst and a hydrogenation catalyst
US-12344695-B2 · Jul 1, 2025 · US
Recent patents
Latest publications not already listed above.
Borate cocatalysts for polyolefin production
US-2025129191-A1 · Apr 24, 2025 · US
Heterocycle-heterocycle-based group IV transition metal catalysts for olefin polymerization
US-12252573-B2 · Mar 18, 2025 · US
Supported catalyst systems containing a silocon bridged, anthracenyl substituted bis-biphenyl-phenoxy organometallic compound for making polyethylene and polyethylene copolymer resins in a gas phase polymerization reactor
US-2025051495-A1 · Feb 13, 2025 · US
Anionic group III complexes as weakly coordinating anions for olefin polymerization catalyst activators
US-12215181-B2 · Feb 4, 2025 · US
Supported catalyst systems containing a germanium bridged, anthracenyl substituted bis-biphenyl-phenoxy organometallic compound for making polyethylene and polyethylene copolymer resins in a gas phase polymerization reactor
US-2025034292-A1 · Jan 30, 2025 · US
Supported catalyst systems containing a carbon bridged, anthracenyl substituted bis-biphenyl-phenoxy organometallic compound for making polyethylene and polyethylene copolymer resins in a gas phase polymerization reactor
US-2025011478-A1 · Jan 9, 2025 · US
Ethylene/1-hexene copolymers
US-2024400733-A1 · Dec 5, 2024 · US
Hydrocarbon soluble borate cocatalysts for olefin polymerization
US-2024247084-A1 · Jul 25, 2024 · US
Biphenylphenol polymerization catalysts
US-2024150502-A1 · May 9, 2024 · US
Bicyclic hafnium metallocenes having nonidentical ligands
US-2024124628-A1 · Apr 18, 2024 · US
Hafnium metallocenes having nonidentical ligands
US-2024116969-A1 · Apr 11, 2024 · US
Hydrocarbyl-modified methylaluminoxane cocatalysts for bisphenylphenoxy metal-ligand complexes
US-2024092952-A1 · Mar 21, 2024 · US
Biphenylphenol polymerization catalysts having improved kinetic induction times
US-2024052075-A1 · Feb 15, 2024 · US
Chromium complex and catalyst therefrom
US-11896965-B2 · Feb 13, 2024 · US
Hydrocarbyl-modified methylaluminoxane cocatalyst for bis-phenylphenoxy metal-ligand complexes
US-2024010771-A1 · Jan 11, 2024 · US
Hydrocarbyl-modified methylaluminoxane cocatalysts for bis-phenylphenoxy metal-ligand complexes
US-2024010770-A1 · Jan 11, 2024 · US
Catalyst systems and processes for producing polyethylene using the same
US-2023322968-A1 · Oct 12, 2023 · US
Hydrocarbyl-modified methylaluminoxane cocatalysts for bis-phenylphenoxy metal-ligand complexes
US-2023287152-A1 · Sep 14, 2023 · US
Spray-dried catalysts containing a germanium-bridged bis-biphenyl-phenoxy organometallic compound for making ethylene-based copolymers
US-2023287159-A1 · Sep 14, 2023 · US
Hydrocarbyl-modified methylaluminoxane cocatalyst for constrained geometry procatalysts
US-2023272133-A1 · Aug 31, 2023 · US
Major assignees
Companies most often associated with this inventor's publications.
| Assignee | Patents |
|---|---|
| Dow Global Technologies Llc | 82 |
| Texas A & M Univ Sys | 2 |
Top CPC classifications
Most common classification codes across this inventor's patents.
| CPC | Patents |
|---|---|
| C08F210/16 | 61 |
| C08F4/65912 | 43 |
| C08F210/14 | 36 |
| C08F4/64193 | 30 |
| C08F4/65908 | 26 |