Who owns the IP
The organizations most actively patenting around this compound, ranked by referenced patent volume.
| # | Assignee | Patents |
|---|---|---|
| 1 | Denka Co Ltd | 1,344 |
| 2 | Corteva Inc | 838 |
| 3 | Bayer AG | 654 |
| 4 | Bridgestone Corp | 387 |
| 5 | 3M Co | 358 |
| 6 | BASF SE | 340 |
| 7 | Goodyear Tire and Rubber Co | 335 |
| 8 | Resonac Holdings Corp | 255 |
| 9 | JSR Corp | 250 |
| 10 | China Petrochemical Corp | 240 |
Explore the full landscape
This preview shows the leading assignees. Cypris reveals the full ownership landscape - every filing entity, filing trends, and portfolio momentum.
Visit CyprisWhere innovation is concentrated
Patent classifications ranked by volume reveal the technical domains with the most active filing.
| # | Code | Area | Patents |
|---|---|---|---|
| 1 | C08L | Polymer compositions (blends) | 12,646 |
| 2 | C08K | Polymer compositions (additives) | 9,587 |
| 3 | C08F | Polymers from C=C unsaturated bonds | 5,710 |
| 4 | Y10T | Cross-reference (technical subjects) | 3,934 |
| 5 | C08J | Working-up of plastics | 3,331 |
| 6 | C09J | Adhesives | 2,828 |
| 7 | B32B | Layered products | 2,393 |
| 8 | B29C | Shaping of plastics | 2,174 |
| 9 | C09D | Coatings, paints, varnishes | 2,123 |
| 10 | Y10S | Cross-reference (legacy) | 1,608 |
AI mapped opportunity space
This preview shows where patent activity concentrates. Cypris maps the full classification landscape to surface technical whitespace and IP headroom.
See Cypris in actionRepresentative patents
The filings that best characterise the patent activity around this compound, most-referenced first.
| Title | Year | Assignee | Cited by |
|---|---|---|---|
| Chloroprene rubber composition having improved cold tolerance | 2009 | China Academy of Railway Sciences Corp Ltd CARS | 65 |
| Glove made from a blend of chloroprene rubber and a carboxylated synthetic butadiene rubber | 1999 | 59 | |
| CHLOROPRENE-BASED POLYMER LATEX AND METHOD FOR PRODUCING THE SAME | 2007 | Resonac Holdings Corp | 57 |
| CHLOROPRENE POLYMER LATEX AND METHOD OF MANUFACTURING THE SAME | 2011 | Resonac Holdings Corp | 44 |
| Plastic polymeric derivatives of chloroprene and process of producing the same | 1941 | Corteva Inc | 43 |
How research activity has moved
Papers published per year for this compound, over the last decade of indexed records.
| Year | Papers |
|---|---|
| 2016 | 2 |
| 2017 | 2 |
| 2019 | 2 |
| 2020 | 3 |
| 2021 | 1 |
Who's driving the science
The most-published authors working with this compound, alongside their primary affiliations.
| # | Author | Affiliation | Papers |
|---|---|---|---|
| 1 | Matthew W. Himmelstein | DuPont (United States) | 9 |
| 2 | Gary M. Marsh | University of Pittsburgh | 7 |
| 3 | Harvey J. Clewell | Triangle | 6 |
| 4 | Jeanine M. Buchanich | University of Pittsburgh | 6 |
| 5 | Robert C. Sills | National Institute of Environmental Health Sciences | 5 |
| 6 | Nurtan A. Esmen | University of Illinois Chicago | 5 |
| 7 | Margaret Phillips | University of Oklahoma Health Sciences Center | 5 |
| 8 | Ada O. Youk | University of Pittsburgh | 5 |
| 9 | Thomas A. Hall | University of Oklahoma Health Sciences Center | 5 |
| 10 | P. Robinan Gentry | United States Gypsum (United States) | 4 |
Research leaders
This preview lists the top authors. Cypris surfaces the full researcher landscape, their affiliations, and how scientific influence is shifting.
See Cypris in actionThe literature that defines it
The most-cited papers anchoring the scientific record for this compound.
| Title | Year | Cited by | Topic |
|---|---|---|---|
| Evaluation of the TOPKAT system for predicting the carcinogenicity of chemicals | 2001 | 70 | Toxic Organic Pollutants Impact |
| Bayesian Models for Multivariate Current Status Data with Informative Censoring | 2002 | 62 | Statistical Methods and Inference |
| High frequency of codon 61 K-ras A→T transversions in lung and Harderian gland neoplasms of B6C3F1 mice exposed to chloroprene (2-chloro-1,3-butadiene) for 2 years, and comparisons with the structurally related chemicals isoprene and 1,3-butadiene | 1999 | 56 | DNA Repair Mechanisms |
| A frailty model approach for regression analysis of multivariate current status data | 2009 | 48 | Statistical Methods and Inference |
| Multiple organ carcinogenicity of inhaled chloroprene (2-chloro-1,3-butadiene) in F344/N rats and B6C3F1 mice and comparison of dose–response with 1,3-butadiene in mice | 1999 | 48 | Carcinogens and Genotoxicity Assessment |
Frequently asked questions
Common questions about this compound's patent and research landscape, answered from the underlying data.
What is the molecular composition of chloroprene?
Which companies hold the most patents related to chloroprene?
What is the scope of patent activity in chloroprene technology?
What are the main technology classifications for chloroprene patents?
What types of research have been published on chloroprene?