Hydrochem Developments Ltd.

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Brampton, CA

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Patents Grantslast 30 patents

Information Patent Grant
Flotation apparatus
- Patent number 5,509,535
- Issue date Apr 23, 1996
- Hydrochem Developments Ltd.
- John C. Schneider
- D21 - PAPER-MAKING PRODUCTION OF CELLULOSE
Information Patent Grant
Process for recovering gold from refractory sulfidic ores
- Patent number 5,013,359
- Issue date May 7, 1991
- Hydrochem Developments Ltd.
- Kenneth J. Fair
- C22 - METALLURGY FERROUS OR NON-FERROUS ALLOYS TREATMENT OF ALLOYS OR NON-FER...
Information Patent Grant
Shut off seal about a shaft of a device having a side entry into a...
- Patent number 4,878,677
- Issue date Nov 7, 1989
- Hydrochem Developments Ltd.
- David J. Larkins
- B01 - PHYSICAL OR CHEMICAL PROCESSES OR APPARATUS IN GENERAL
Information Patent Grant
Oxidation process for releasing metal values in which nitric acid i...
- Patent number 4,834,793
- Issue date May 30, 1989
- Hydrochem Developments Ltd.
- John C. Schneider
- C22 - METALLURGY FERROUS OR NON-FERROUS ALLOYS TREATMENT OF ALLOYS OR NON-FER...
Information Patent Grant
Flotation apparatus
- Patent number 4,750,994
- Issue date Jun 14, 1988
- Hydrochem Developments Ltd.
- John C. Schneider
- B01 - PHYSICAL OR CHEMICAL PROCESSES OR APPARATUS IN GENERAL
Information Patent Grant
Oxidation process for releasing metal values in which nitric acid i...
- Patent number 4,670,051
- Issue date Jun 2, 1987
- Hydrochem Developments Ltd.
- John C. Schneider
- C22 - METALLURGY FERROUS OR NON-FERROUS ALLOYS TREATMENT OF ALLOYS OR NON-FER...

Hydrochem Developments Ltd.

Organization

Patents Grantslast 30 patents

Flotation apparatus

Process for recovering gold from refractory sulfidic ores

Shut off seal about a shaft of a device having a side entry into a...

Oxidation process for releasing metal values in which nitric acid i...

Flotation apparatus

Oxidation process for releasing metal values in which nitric acid i...

Patents Applicationslast 30 patents

Trademarklast 30 trademarks