Richard S. Ketcham

Follow

Person

Ames, IA, US

People

Patents Grantslast 30 patents

Information Patent Grant
Method for optimizing piezoelectric resonator-based networks
- Patent number 5,404,628
- Issue date Apr 11, 1995
- TFR Technologies, Inc.
- Richard S. Ketcham
- H03 - BASIC ELECTRONIC CIRCUITRY
Information Patent Grant
Optimized piezoelectric resonator-based networks
- Patent number 5,231,327
- Issue date Jul 27, 1993
- TFR Technologies, Inc.
- Richard S. Ketcham
- H03 - BASIC ELECTRONIC CIRCUITRY