146,936 patents · 9,620 papers · 15,959 patents and 1,480 papers in the last 3 years.
Top assignees
- General Electric Co (2,824 patents)
- SABIC Global Technologies BV (2,350 patents)
- Resonac Corp (1,519 patents)
Notable patents
- Bisphenol-A/terephthalate/carbonate melt processable copolymers (1979)
- Blends of bisphenol a polycarbonate and polyesters (2000)
- BISPHENOL-A-TEREPHTHALATE-CARBONATE COPOLYMER AND PROCESS FOR THE PRODUCTION (1977)
Notable papers
Top assignees
| Assignee | Patents |
|---|---|
| General Electric Co | 2,824 |
| SABIC Global Technologies BV | 2,350 |
| Resonac Corp | 1,519 |
| Mitsubishi Chemical Corp | 1,454 |
| Dow Chemical Co | 1,379 |
| Bayer AG | 1,357 |
| PPG Industries Ohio Inc | 930 |
| BASF SE | 846 |
| Sumitomo Bakelite Co Ltd | 826 |
| Teijin Ltd | 775 |
Top authors
| Author | Affiliation | Papers |
|---|---|---|
| Antonia M. Calafat | Centers for Disease Control and Prevention | 77 |
| Kurunthachalam Kannan | New York State Department of Health | 76 |
| Frederick S. vom Saal | University of Missouri | 48 |
| Ana M. Soto | Tufts University | 29 |
| Heather B. Patisaul | North Carolina State University | 25 |
| Enrique H. Luque | National University of the Littoral | 20 |
| Carlos Sonnenschein | Tufts University | 19 |
| Jing Zhang | Beijing Center for Disease Prevention and Control | 19 |
| Julia A. Taylor | University of Missouri | 19 |
| Leonardo Trasande | New York University | 19 |
Top patents
| Title | Year | Assignee | Citations |
|---|---|---|---|
| Bisphenol-A/terephthalate/carbonate melt processable copolymers | 1979 | Honeywell International Inc | 355 |
| Blends of bisphenol a polycarbonate and polyesters | 2000 | Eastman Chemical Co | 223 |
| BISPHENOL-A-TEREPHTHALATE-CARBONATE COPOLYMER AND PROCESS FOR THE PRODUCTION | 1977 | Honeywell International Inc | 221 |
| Three-dimensional polycyclic bisphenol polycarbonates and polyesters | 1967 | Eastman Kodak Co | 200 |
| BISPHENOL DERIVATIVE THERAPEUTICS AND METHODS FOR THEIR USE | 2011 | ANDERSEN, RAYMOND J. | 100 |
Top papers
| Title | Year | Citations | Topic |
|---|---|---|---|
| Hormones and Endocrine-Disrupting Chemicals: Low-Dose Effects and Nonmonotonic Dose Responses | 2012 | 3061 | Carcinogens and Genotoxicity Assessment |
| Transport and release of chemicals from plastics to the environment and to wildlife | 2009 | 2854 | Toxic Organic Pollutants Impact |
| Human exposure to bisphenol A (BPA) | 2007 | 2822 | Carcinogens and Genotoxicity Assessment |
| EDC-2: The Endocrine Society's Second Scientific Statement on Endocrine-Disrupting Chemicals | 2015 | 2311 | Toxic Organic Pollutants Impact |
| Rapid removal of organic micropollutants from water by a porous β-cyclodextrin polymer | 2015 | 1748 | Adsorption and biosorption for pollutant removal |
Patent classifications
| Code | Area | Patents |
|---|---|---|
C08L | Polymer compositions (blends) | 47,822 |
C08G | Polymers from non-vinyl bonds (e.g. polyamides, polyesters) | 42,973 |
C08K | Polymer compositions (additives) | 33,070 |
C09D | Coatings, paints, varnishes | 21,460 |
C08J | Working-up of plastics | 13,834 |
C09J | Adhesives | 12,089 |
C08F | Polymers from C=C unsaturated bonds | 10,539 |
Y10T | Cross-reference (technical subjects) | 10,372 |
B32B | Layered products | 7,213 |
C07C | Acyclic and carbocyclic compounds | 5,996 |
Research topics
| Topic | Papers |
|---|---|
| Effects and risks of endocrine disrupting chemicals | 93 |
| Pharmaceutical and Antibiotic Environmental Impacts | 8 |
| Analytical chemistry methods development | 3 |
| Adsorption and biosorption for pollutant removal | 2 |
| Advanced Photocatalysis Techniques | 2 |
| Estrogen and related hormone effects | 2 |
| Membrane Separation Technologies | 2 |
| Toxic Organic Pollutants Impact | 2 |
| Adsorption, diffusion, and thermodynamic properties of materials | 1 |
| Advanced biosensing and bioanalysis techniques | 1 |
Frequently asked questions
What is the molecular composition of Bisphenol A?
Bisphenol A has the molecular formula C15H16O2 with a molecular weight of 228.291. Its canonical IUPAC name is 4-[2-(4-hydroxyphenyl)propan-2-yl]phenol, and it is also known by many synonyms including Diano, Parabis, and Diphenylolpropane.
Which companies hold the most patents related to Bisphenol A?
General Electric Co leads with 2824 patents, followed by SABIC Global Technologies BV with 2350 patents. Other major patent holders include Resonac Corp, Mitsubishi Chemical Corp, and Dow Chemical Co, each holding over 1300 patents in this space.
What are the most heavily cited research areas for Bisphenol A?
The most prominent research topic is Effects and risks of endocrine disrupting chemicals. Key highly-cited papers include Hormones and Endocrine-Disrupting Chemicals: Low-Dose Effects and Nonmonotonic Dose Responses (3061 citations), Transport and release of chemicals from plastics to the environment and to wildlife (2854 citations), and Human exposure to bisphenol A (BPA) (2822 citations).
Who are the leading researchers publishing on Bisphenol A?
Antonia M. Calafat from the Centers for Disease Control and Prevention and Kurunthachalam Kannan from the New York State Department of Health are the most prolific authors, each with 77 and 76 papers respectively. Other significant contributors include Frederick S. vom Saal from the University of Missouri and Ana M. Soto from Tufts University.
How has patent activity for Bisphenol A evolved in recent years?
Patent filings reached a peak of 8261 patents in 2023, with 7599 in 2022 and 7355 in 2024. Over the last three years (2022–2024), there have been 15,959 patents total. In 2025, only 538 patents have been recorded so far, likely due to incomplete data collection for that year.