Bernard J. O. Leman

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Leers, FR

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Patents Grantslast 30 patents

Information Patent Grant
Porous granular material obtained from wool scouring liquor, method...
- Patent number 5,719,101
- Issue date Feb 17, 1998
- Peignage Amedee
- Bernard Leman
- C04 - CEMENTS CONCRETE ARTIFICIAL STONE CERAMICS REFRACTORIES
Information Patent Grant
Process for the purification of greasy and soiled water using a hea...
- Patent number 4,124,502
- Issue date Nov 7, 1978
- Peignage Amedee
- Bernard J. O. Leman
- C02 - TREATMENT OF WATER, WASTE WATER, SEWAGE, OR SLUDGE