Cohnen; Wolfgang
Patent Applications and Registrations
Patent applications and USPTO patent grants for Cohnen; Wolfgang.The latest application filed is for "polycarbonate molding compositions having improved flame retardance".
- Cohnen; Wolfgang - Leverkusen DE
- Cohnen; Wolfgang - Krefeld-Uerdingen DE
- Cohnen; Wolfgang - Krefeld DE
| Patent | Date |
|---|---|
| Polycarbonate molding compositions having improved flame retardance Grant 4,552,911 - Cohnen , et al. November 12, 1 | 1985-11-12 |
| Transparent moulding composition of a polycarbonate and a resin Grant RE31,165 - Serini , et al. March 1, 1 | 1983-03-01 |
| UV Light stabilized polycarbonate composition Grant 4,228,067 - Lachmann , et al. October 14, 1 | 1980-10-14 |
| Stabilizer mixtures Grant 4,102,859 - Eimers , et al. July 25, 1 | 1978-07-25 |
| Blowing agent mixture Grant 4,065,401 - Cohnen , et al. December 27, 1 | 1977-12-27 |
| Process for stabilizing moldings of high molecular weight thermo-plastic polycarbonates Grant 3,892,889 - Cohnen , et al. July 1, 1 | 1975-07-01 |
| Polycarbonate mixtures Grant 3,890,266 - Serini , et al. June 17, 1 | 1975-06-17 |
| Transparent moulding composition of a polycarbonate and a resin Grant 3,880,783 - Serini , et al. April 29, 1 | 1975-04-29 |
uspto.report is an independent third-party trademark research tool that is not affiliated, endorsed, or sponsored by the United States Patent and Trademark Office (USPTO) or any other governmental organization. The information provided by uspto.report is based on publicly available data at the time of writing and is intended for informational purposes only.
While we strive to provide accurate and up-to-date information, we do not guarantee the accuracy, completeness, reliability, or suitability of the information displayed on this site. The use of this site is at your own risk. Any reliance you place on such information is therefore strictly at your own risk.
All official trademark data, including owner information, should be verified by visiting the official USPTO website at www.uspto.gov. This site is not intended to replace professional legal advice and should not be used as a substitute for consulting with a legal professional who is knowledgeable about trademark law.
| 