Richard A. Freeman

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Cedar Rapids, IA, US

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Patents Grantslast 30 patents

Information Patent Grant
PCB spiral antenna and feed network for ELINT applications
- Patent number 8,390,529
- Issue date Mar 5, 2013
- Rockwell Collins, Inc.
- Lee M. Paulsen
- H01 - BASIC ELECTRIC ELEMENTS
Information Patent Grant
MEMS-based broadband transceiver/sensor
- Patent number 7,831,210
- Issue date Nov 9, 2010
- Rockwell Collins, Inc.
- Richard A. Freeman
- H04 - ELECTRIC COMMUNICATION TECHNIQUE
Information Patent Grant
Integrated frequency source
- Patent number 6,542,044
- Issue date Apr 1, 2003
- Rockwell Collins, Inc.
- Roy W. Berquist
- H03 - BASIC ELECTRONIC CIRCUITRY
Information Patent Grant
Phase locked loop filter utilizing a tuned filter
- Patent number 6,420,916
- Issue date Jul 16, 2002
- Rockwell Collins, Inc.
- Richard A. Freeman
- H03 - BASIC ELECTRONIC CIRCUITRY
Information Patent Grant
Digital voice and data frequency modulation circuit
- Patent number 4,682,123
- Issue date Jul 21, 1987
- Rockwell International Corporation
- Roger K. Loper
- H04 - ELECTRIC COMMUNICATION TECHNIQUE