Kim D. Nguyen

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Waterloo, Ontario, CA

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Patents Grantslast 30 patents

Information Patent Grant
Stripping method and apparatus
- Patent number 5,439,509
- Issue date Aug 8, 1995
- Turbotak Inc.
- Donald R. Spink
- C01 - INORGANIC CHEMISTRY
Information Patent Grant
Solute gas-absorbing procedure
- Patent number 5,364,604
- Issue date Nov 15, 1994
- Turbotak Technologies Inc.
- Donald R. Spink
- B01 - PHYSICAL OR CHEMICAL PROCESSES OR APPARATUS IN GENERAL
Information Patent Grant
Production of low-chloride alkali metal phosphates
- Patent number 5,114,460
- Issue date May 19, 1992
- Alpine Plant Foods Limited
- Kim D. Nguyen
- C05 - FERTILISERS MANUFACTURE THEREOF
Information Patent Grant
Production of low-chloride fertilizers
- Patent number 5,055,124
- Issue date Oct 8, 1991
- Alpine Plant Foods Limited
- Kim D. Nguyen
- C05 - FERTILISERS MANUFACTURE THEREOF
Information Patent Grant
Hydrometallurgical production of zinc oxide from roasted zinc conce...
- Patent number 5,028,410
- Issue date Jul 2, 1991
- Material-Concepts-Research Limited
- Donald R. Spink
- C22 - METALLURGY FERROUS OR NON-FERROUS ALLOYS TREATMENT OF ALLOYS OR NON-FER...
Information Patent Grant
Process for treating zinc oxide bearing materials
- Patent number 5,017,346
- Issue date May 21, 1991
- Ecolomics Inc.
- Donald R. Spink
- C22 - METALLURGY FERROUS OR NON-FERROUS ALLOYS TREATMENT OF ALLOYS OR NON-FER...