Frank C. Rock

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Santa Rosa, CA, US

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Patents Grantslast 30 patents

Information Patent Grant
Dual platform counting scale
- Patent number 4,139,070
- Issue date Feb 13, 1979
- National Controls, Inc.
- Harlan B. Hanson
- G01 - MEASURING TESTING
Information Patent Grant
Computing postal scale and method with taring capability
- Patent number 4,064,954
- Issue date Dec 27, 1977
- Frank C. Rock
- B07 - SEPARATING SOLIDS FROM SOLIDS SORTING
Information Patent Grant
Computing scale and method
- Patent number 4,063,604
- Issue date Dec 20, 1977
- National Controls, Inc.
- Frank C. Rock
- B07 - SEPARATING SOLIDS FROM SOLIDS SORTING
Information Patent Grant
Counting scale and method
- Patent number 4,043,412
- Issue date Aug 23, 1977
- National Controls, Inc.
- Frank C. Rock
- G01 - MEASURING TESTING
Information Patent Grant
Computing scale and method with taring capability
- Patent number 4,036,316
- Issue date Jul 19, 1977
- National Controls, Inc.
- Frank C. Rock
- G01 - MEASURING TESTING
Information Patent Grant
Computing postal scale
- Patent number 3,951,221
- Issue date Apr 20, 1976
- National Controls, Inc.
- Frank C. Rock
- B07 - SEPARATING SOLIDS FROM SOLIDS SORTING