James E. Gilchrist

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Cincinnati, OH, US

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Patents Grantslast 30 patents

Information Patent Grant
Apparatus and process for preparing quantitative chemical solutions
- Patent number 4,469,146
- Issue date Sep 4, 1984
- Spiral Systems, Inc.
- Jeptha E. Campbell
- G01 - MEASURING TESTING
Information Patent Grant
Microscope slides
- Patent number 4,447,140
- Issue date May 8, 1984
- Jeptha E. Campbell
- G02 - OPTICS
Information Patent Grant
Gravimetric diluter
- Patent number 4,345,628
- Issue date Aug 24, 1982
- Spiral Systems Inc.
- Jeptha E. Campbell
- G01 - MEASURING TESTING
Information Patent Grant
Method and apparatus for plating and counting aerobic bacteria
- Patent number 3,962,040
- Issue date Jun 8, 1976
- The United States of America as represented by the Department of Health, Educ...
- Jeptha E. Campbell
- G06 - COMPUTING CALCULATING COUNTING