Jeptha E. Campbell

Person

Cincinnati, OH, US

People

Patents Grantslast 30 patents

Information Patent Grant
Asbestos sample filter clearing system
- Patent number 4,876,901
- Issue date Oct 31, 1989
- Spiral Systems, Inc.
- Jeptha E. Campbell
- G01 - MEASURING TESTING
Information Patent Grant
Apparatus for dispensing particulate agglomerating solids
- Patent number 4,688,610
- Issue date Aug 25, 1987
- Spiral Systems Inc.
- Jeptha E. Campbell
- B65 - CONVEYING PACKING STORING HANDLING THIN OR FILAMENTARY MATERIAL
Information Patent Grant
Apparatus for precisely dispensing free flowing solids
- Patent number 4,630,755
- Issue date Dec 23, 1986
- Spiral Systems, Inc.
- Jeptha E. Campbell
- B65 - CONVEYING PACKING STORING HANDLING THIN OR FILAMENTARY MATERIAL
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

Jeptha E. Campbell

Person

Patents Grantslast 30 patents

Asbestos sample filter clearing system

Apparatus for dispensing particulate agglomerating solids

Apparatus for precisely dispensing free flowing solids

Apparatus and process for preparing quantitative chemical solutions

Microscope slides

Gravimetric diluter

Method and apparatus for plating and counting aerobic bacteria