Kropp; Rudolf
Patent Applications and Registrations
Patent applications and USPTO patent grants for Kropp; Rudolf.The latest application filed is for "process for producing organic nitrogen compounds, special organic nitrogen compounds and mixtures of such compounds and their use as fuel and lubricant additives".
- Kropp; Rudolf - Limburgerhof DE
- Kropp; Rudolf - Pforzheim-Wurm DE
| Patent | Date |
|---|---|
| Process for producing organic nitrogen compounds, special organic nitrogen compounds and mixtures of such compounds and their use as fuel and lubricant additives Grant 6,069,281 - Kropp , et al. May 30, 2 | 2000-05-30 |
| Gold-silver alloys with good tarnish resistance for the dental art Grant 4,255,191 - Kropp March 10, 1 | 1981-03-10 |
| Substituted pyrazoles Grant 4,008,249 - Fischer, deceased , et al. February 15, 1 | 1977-02-15 |
| Hard copper free dental gold alloys Grant 4,007,040 - Kropp February 8, 1 | 1977-02-08 |
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