Lawrence A. Johnson

Follow

Person

Plymouth, MN, US

People

Patents Grantslast 30 patents

Information Patent Grant
Optical displacement sensor
- Patent number 4,806,016
- Issue date Feb 21, 1989
- Rosemount Inc.
- Gary P. Corpron
- G01 - MEASURING TESTING
Information Patent Grant
Wavelength coded resonant optical sensor
- Patent number 4,775,214
- Issue date Oct 4, 1988
- Rosemount Inc.
- Lawrence A. Johnson
- G01 - MEASURING TESTING