Non-aqueous liquid electrolyte, electricity storage device using same, and phosphorus compound used therein
US-2017275311-A1 · Sep 28, 2017 · US
Five-membered rings
Five-membered rings · 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 | C07F9/572 |
| Official title | Five-membered rings |
| Display label | Five-membered rings |
| Total patents | 262 |
Filing trend
Year-over-year patent counts classified under this CPC code.
Filing activity over the last five years is stable.
| Year | Patents |
|---|---|
| 2015 | 26 |
| 2016 | 19 |
| 2017 | 35 |
| 2018 | 25 |
| 2019 | 31 |
| 2020 | 23 |
| 2021 | 25 |
| 2022 | 11 |
| 2023 | 18 |
| 2024 | 22 |
| 2025 | 22 |
| 2026 | 5 |
Representative patents
Representative publications under this CPC code from precomputed stats, or recent filings when stats are unavailable.
Compounds for ph-controlled release of hydrogen sulfide
US-2017253622-A1 · Sep 7, 2017 · US
Pharmaceutical dosage form for immediate release of an indolinone derivative
US-2017239191-A1 · Aug 24, 2017 · US
Novel substituted 6,7-dihydro-5h-benzo[7]annulene compounds, processes for their preparation and therapeutic uses thereof
US-2017233340-A1 · Aug 17, 2017 · US
Endosseous implant
US-9730795-B2 · Aug 15, 2017 · US
Benzene-based diphosphine ligands for alkoxycarbonylation
US-9725398-B2 · Aug 8, 2017 · US
Substituted 6,7-dihydro-5H-benzo[7]annulene compounds, processes for their preparation and therapeutic uses thereof
US-9714221-B1 · Jul 25, 2017 · US
Oligonucleotide analogues having modified intersubunit linkages and/or terminal groups
US-2017198287-A1 · Jul 13, 2017 · US
Process for the preparation of acylphosphanes
US-9701700-B2 · Jul 11, 2017 · US
Phosphate based linkers for intracellular delivery of drug conjugates
US-2017182181-A1 · Jun 29, 2017 · US
Ligand compound, catalyst system for olefin oligomerization, and method for olefin oligomerization using the same
US-9643170-B2 · May 9, 2017 · US
Base generator
US-9617223-B2 · Apr 11, 2017 · US
Monomers and oligonucleotides comprising cycloaddition adduct(s)
US-9566340-B2 · Feb 14, 2017 · US
Butyl-bridged diphosphine ligands for alkoxycarbonylation
US-2017022138-A1 · Jan 26, 2017 · US
Ferrocene-based compounds and palladium catalysts based thereon for the alkoxycarbonylation of ethylenically unsaturated compounds
US-2017022236-A1 · Jan 26, 2017 · US
Borate-based base generator, and base-reactive composition comprising such base generator
US-2016340374-A1 · Nov 24, 2016 · US
Substituted bisphenyl butanoic phosphonic acid derivatives as NEP inhibitors
US-9480693-B2 · Nov 1, 2016 · US
Ligand compound, catalyst system for olefin oligomerization, and method for olefin oligomerization using the same
US-2016303552-A1 · Oct 20, 2016 · US
Boron cluster-modified PEG lipid derivative, and molecular assembly using same
US-9468688-B2 · Oct 18, 2016 · US
Oligonucleotide analogues having modified intersubunit linkages and/or terminal groups
US-9469664-B2 · Oct 18, 2016 · US
Frequently asked questions
Answers are generated from the same data shown on this page.
- What is CPC C07F9/572?
- CPC C07F9/572 is the Cooperative Patent Classification code for “Five-membered rings.”
- How many patents are filed under CPC C07F9/572 (Five-membered rings)?
- Our database includes 262 publications tagged with this CPC code.
- Is patent activity under CPC C07F9/572 growing?
- Publication counts under this code: 22 in 2024 vs 22 in 2025 (latest complete years).