Hoffmann; Petrus Johannes
Patent Applications and Registrations
Patent applications and USPTO patent grants for Hoffmann; Petrus Johannes.The latest application filed is for "process for reducing the toxicity of hydrocarbons".
- Hoffmann; Petrus Johannes - Durbanville ZA
- Hoffmann, Petrus Johannes - Sonstraal Heights ZA
| Patent | Date |
|---|---|
| Process for reducing the toxicity of hydrocarbons Grant 7,429,553 - Dunlop , et al. September 30, 2 | 2008-09-30 |
| Process for reducing the toxicity of hydrocarbons Grant 7,326,817 - Dunlop , et al. February 5, 2 | 2008-02-05 |
| Process For Reducing The Toxicity Of Hydrocarbons App 20070213229 - Dunlop; Carl ; et al. | 2007-09-13 |
| Process for reducing the toxicity of hydrocarbons App 20050197256 - Dunlop, Carl ; et al. | 2005-09-08 |
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