Long Jin Chen

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Sudbury, CA

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Patents Grantslast 30 patents

Information Patent Grant
Apparatus for producing high density slurry and paste backfills
- Patent number 6,168,352
- Issue date Jan 2, 2001
- Her Majesty the Queen in right of Canada, as represented by the Minister of N...
- Long Jin Chen
- B28 - WORKING CEMENT, CLAY, OR STONE
Information Patent Grant
Backfill paste production facility and method and apparatus for pro...
- Patent number 5,888,026
- Issue date Mar 30, 1999
- Her Majesty the Queen in right of Canada, as represented by the Minister of N...
- Long Jin Chen
- B28 - WORKING CEMENT, CLAY, OR STONE
Information Patent Grant
Nozzle for fluidizing particulate material
- Patent number 5,405,063
- Issue date Apr 11, 1995
- Her Majesty the Queen in right of Canada, as represented by the Minister of E...
- Long J. Chen
- B65 - CONVEYING PACKING STORING HANDLING THIN OR FILAMENTARY MATERIAL