Zakiewicz; Bohdan
Patent Applications and Registrations
Patent applications and USPTO patent grants for Zakiewicz; Bohdan.The latest application filed is for "pro-ecological mining system".
- Zakiewicz; Bohdan - Santa Monica CA
- Zakiewicz; Bohdan - Houston TX
| Patent | Date |
|---|---|
| Closed loop, hot dry rock heat recovery fluid Grant 8,201,409 - Zakiewicz June 19, 2 | 2012-06-19 |
| Closed loop, hot dry rock heat recovery process Grant 8,020,382 - Zakiewicz September 20, 2 | 2011-09-20 |
| Pro-ecological mining system Grant 6,679,326 - Zakiewicz January 20, 2 | 2004-01-20 |
| Matrix of meltable minerals and fertilizers Grant 6,627,680 - Zakiewicz September 30, 2 | 2003-09-30 |
| Pro-ecological mining system App 20030131989 - Zakiewicz, Bohdan | 2003-07-17 |
| Recovery and reforming of crudes at the heads of multifunctional wells and oil mining system with flue gas stimulation Grant 6,318,468 - Zakiewicz November 20, 2 | 2001-11-20 |
| Oil recovery method and apparatus Grant 4,305,463 - Zakiewicz December 15, 1 | 1981-12-15 |
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