Magneto-optic modulator using dielectric mirrors
Joe C. Campbell, Kam-Yin Lau and Julian Stone
U.S. Patent 4,239,337. December 1980

Polarization converter and circuit elements for use in optical waveguides
Shyh Wang, Manhar L. Shah and John D. Crow
U.S. Patent 4,220,395. September 1980

Method of aligning and locating the mirrors of a collector field with respect to a receptor tower
Otto J. M. Smith
U.S. Patent 4,219,729. August 1980

Linear differential charge splitting input for charge coupled devices
Ronald E. Crochiere, Carlo H. Séquin and Michael F. Tompsett
U.S. Patent 4,210,825. July 1980

Heated piping system for fusible salt heat exchange fluid in a solar power plant
Otto J. M. Smith
U.S. Patent 4,204,407. May 1980

Weighted capacitor analog/digital converting apparatus and method
David A. Hodges, Paul R. Gray and James L. McCreary
U.S. Patent 4,200,863. April 1980

Solar power system and high efficiency photovoltaic cells used therein
Terry I. Chappell and Richard M. White
U.S. Patent 4,200,472. April 1980

Fabry-Perot Resonator Using a Birefringent Crystal
Ivan P. Kaminow
U.S. Patent 4,198,115. April 1980

Linear load MOS transistor circuit
Carlo H. Séquin and Edward J. Simany, Jr.
U.S. Patent 4,197,511. April 1980

Signal injection technique
James M. Kasson and Martin H. Graham
U.S. Patent 4,187,466. February 1980