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Patent applications and USPTO patent grants for Schellhammer; Carl-Wolfgang.The latest application filed is for "light-collecting systems and the use of coumarin derivatives as energy converters in them".
Patent | Date |
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Light-collecting systems and the use of coumarin derivatives as energy converters in them Grant 4,526,705 - Arndt , et al. July 2, 1 | 1985-07-02 |
Triazolyl coumarin compounds, processes for their preparation and their use as whiteners and laser dyestuffs Grant 4,326,066 - Eckstein , et al. April 20, 1 | 1982-04-20 |
Process for the preparation of 1,2,3-triazoles substituted in the 2-position Grant 4,284,787 - Knupfer , et al. August 18, 1 | 1981-08-18 |
Dyestuff laser Grant 4,274,062 - Brinkmann , et al. June 16, 1 | 1981-06-16 |
Process For The Production Of 3-substituted 7-amino-coumarins Grant 3,681,397 - Knupfer , et al. August 1, 1 | 1972-08-01 |
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