Robert L. Durham

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Houston, TX, US

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Patents Grantslast 30 patents

Information Patent Grant
Plant growth media containing rice hull ash
- Patent number 4,707,176
- Issue date Nov 17, 1987
- Agritec, Inc.
- Robert L. Durham
- C05 - FERTILISERS MANUFACTURE THEREOF
Information Patent Grant
Filtration with biogenetic silica
- Patent number 4,645,605
- Issue date Feb 24, 1987
- Agritec, Inc.
- Robert L. Durham
- C02 - TREATMENT OF WATER, WASTE WATER, SEWAGE, OR SLUDGE
Information Patent Grant
Biogenetic silica insulation
- Patent number 4,555,448
- Issue date Nov 26, 1985
- Agritec, Inc.
- Robert L. Durham
- C04 - CEMENTS CONCRETE ARTIFICIAL STONE CERAMICS REFRACTORIES
Information Patent Grant
Process for containment of liquids as solids or semisolids
- Patent number 4,460,292
- Issue date Jul 17, 1984
- Agritec, Inc.
- Robert L. Durham
- B09 - DISPOSAL OF SOLID WASTE RECLAMATION OF CONTAMINED SOIL SOIL
Information Patent Grant
Bound aggregate method and composition
- Patent number 4,238,374
- Issue date Dec 9, 1980
- Agritec, Inc.
- Robert L. Durham
- C04 - CEMENTS CONCRETE ARTIFICIAL STONE CERAMICS REFRACTORIES