DH20, L.L.C.
Patent Applications and Registrations
Patent applications and USPTO patent grants for DH20, L.L.C..The latest application filed is for "method for treating waste-activated sludge using electroporation".
- DH20, L.L.C. - Chicago IL
| Patent | Date |
|---|---|
| Method for treating waste-activated sludge using electroporation Grant 6,709,594 - Held , et al. March 23, 2 | 2004-03-23 |
| Method of treating waste-activated sludge using electroporation Grant 6,540,919 - Held , et al. April 1, 2 | 2003-04-01 |
| Method for the molecular destruction of waste-activated sludge using high electrical voltage Grant 6,491,820 - Held , et al. December 10, 2 | 2002-12-10 |
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