Hill; Philip Dean
Patent Applications and Registrations
Patent applications and USPTO patent grants for Hill; Philip Dean.The latest application filed is for "method for purifying spent acid".
- Hill; Philip Dean - Baton Rouge LA
| Patent | Date |
|---|---|
| Method for purifying spent acid Grant 7,034,193 - Liu , et al. April 25, 2 | 2006-04-25 |
| Method for purifying spent acid App 20050010064 - Liu, Richard Wai-Chun ; et al. | 2005-01-13 |
| Process for removing tar from spent acid Grant 6,818,799 - Liu , et al. November 16, 2 | 2004-11-16 |
| Process for removing tar from spent acid App 20040210095 - Liu, Richard Wai-Chun ; et al. | 2004-10-21 |
| Method for fluidizing tars Grant 6,197,837 - Hill , et al. March 6, 2 | 2001-03-06 |
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