Maassen; Ralf
Patent Applications and Registrations
Patent applications and USPTO patent grants for Maassen; Ralf.The latest application filed is for "reactor and process for preparing hydrogen sulphide".
- Maassen; Ralf - Erftstadt DE
- Maassen; Ralf - US
- Maassen, Ralf - Hanau DE
| Patent | Date |
|---|---|
| Reactor and process for preparing hydrogen sulphide Grant 9,649,615 - Finkeldei , et al. May 16, 2 | 2017-05-16 |
| Reactor and process for preparing hydrogen sulphide Grant 9,630,843 - Finkeldei , et al. April 25, 2 | 2017-04-25 |
| Reactor and process for preparing hydrogen sulphide Grant 9,440,208 - Finkeldei , et al. September 13, 2 | 2016-09-13 |
| Reactor and process for preparing hydrogen sulphide Grant 9,421,511 - Finkeldei , et al. August 23, 2 | 2016-08-23 |
| Reactor And Process For Preparing Hydrogen Sulphide App 20150209747 - Finkeldei; Caspar-Heinrich ; et al. | 2015-07-30 |
| Reactor And Process For Preparing Hydrogen Sulphide App 20150190775 - Finkeldei; Caspar-Heinrich ; et al. | 2015-07-09 |
| Reactor And Process For Preparing Hydrogen Sulphide App 20150175419 - Finkeldei; Caspar-Heinrich ; et al. | 2015-06-25 |
| Reactor And Process For Preparing Hydrogen Sulphide App 20150151271 - Finkeldei; Caspar-Heinrich ; et al. | 2015-06-04 |
| Process for the preparation of 2,3,5-trimethy1-p- benzoquinone App 20010041804 - Maassen, Ralf ; et al. | 2001-11-15 |
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.
| 