Group 4 transition metal compound and use thereof
US-10160775-B2 · Dec 25, 2018 · US
of silicon, germanium, tin, lead, titanium, zirconium or hafnium
of silicon, germanium, tin, lead, titanium, zirconium or hafnium · Cooperative Patent Classification (CPC)
Chemical and metallurgical processes, compounds, and materials.
Related technology areas
Mapped technology topics for this CPC code.
| Metric | Value |
|---|---|
| CPC code | C08F4/16 |
| Official title | of silicon, germanium, tin, lead, titanium, zirconium or hafnium |
| Display label | of silicon, germanium, tin, lead, titanium, zirconium or hafnium |
| Total patents | 147 |
Filing trend
Year-over-year patent counts classified under this CPC code.
Filing activity over the last five years is rapidly declining.
| Year | Patents |
|---|---|
| 2015 | 16 |
| 2016 | 15 |
| 2017 | 21 |
| 2018 | 24 |
| 2019 | 19 |
| 2020 | 15 |
| 2021 | 9 |
| 2022 | 11 |
| 2023 | 5 |
| 2024 | 7 |
| 2025 | 3 |
| 2026 | 2 |
Representative patents
Representative publications under this CPC code from precomputed stats, or recent filings when stats are unavailable.
Organometallic compound in solid form, process for preparing the same and use thereof
US-2018355082-A1 · Dec 13, 2018 · US
Flame retardant polycarprolactone
US-2018320077-A1 · Nov 8, 2018 · US
Propylene random copolymer
US-10113021-B2 · Oct 30, 2018 · US
Polypropylene films and sheets
US-9969820-B2 · May 15, 2018 · US
Methods for controlling aluminum alkyl feed to a slurry polymerization process
US-9896520-B2 · Feb 20, 2018 · US
Catalyst composition for preparing conjugated diene-based polymer and conjugated diene-based polymer prepared using the same
US-2018044452-A1 · Feb 15, 2018 · US
C2C3 Random Copolymer Composition with Improved Balance Between Sealing Initiation Temperature and Melting Point
US-2018030255-A1 · Feb 1, 2018 · US
Synthesis of functional polyisobutylene-containing oligomers and polymers
US-9828454-B2 · Nov 28, 2017 · US
Method for polymerizing ethylene to form a high density polyethylene nanocomposite
US-2017260376-A1 · Sep 14, 2017 · US
Low emission propylene homopolymer with high melt flow
US-9751962-B2 · Sep 5, 2017 · US
Methods for preparation of propylene polymers
US-9751965-B2 · Sep 5, 2017 · US
Catalyst precursor and catalyst for the high-temperature (co)polymerization of alpha-olefin
US-9751959-B2 · Sep 5, 2017 · US
Process for the preparation of copolymers of propylene
US-2017247480-A1 · Aug 31, 2017 · US
Novel group 4 transition metal compound and use thereof
US-2017233415-A1 · Aug 17, 2017 · US
Propylene random copolymer
US-2017218104-A1 · Aug 3, 2017 · US
Photochemical preparation of hydroxyl-terminated polyisobutylenes and related methods and uses
US-9701781-B2 · Jul 11, 2017 · US
Methods for controlling aluminum alkyl feed to a slurry polymerization process
US-2017183427-A1 · Jun 29, 2017 · US
High-density polyethylene preparation methods
US-9688836-B2 · Jun 27, 2017 · US
Curable film-forming compositions containing encapsulated catalyst components
US-9650480-B2 · May 16, 2017 · US
Frequently asked questions
Answers are generated from the same data shown on this page.
- What is CPC C08F4/16?
- CPC C08F4/16 is the Cooperative Patent Classification code for “of silicon, germanium, tin, lead, titanium, zirconium or hafnium.”
- How many patents are filed under CPC C08F4/16 (of silicon, germanium, tin, lead, titanium, zirconium or hafnium)?
- Our database includes 147 publications tagged with this CPC code.
- Is patent activity under CPC C08F4/16 growing?
- Publication counts under this code: 7 in 2024 vs 3 in 2025 (latest complete years).