Patents - 1973

Integrated feedback laser
Herwig Werner Kogelnik and Charles Vernon Shank
U.S. Patent 3,760,292. September 1973

Electrocardiograph lead distribution and contact testing apparatus
Martin H. Graham
U.S. Patent 3,757,778. September 1973

Double-clamped Schottky transistor logic gate circuit
David A. Hodges
U.S. Patent 3,751,680. August 1973

Method, apparatus and system for the identification of the relationship between two signals
Otto J. M. Smith
U.S. Patent 3,742,391. June 1973

Reversible two-phase charge coupled devices
Robert Harold Krambeck and Carlo Heinrich Séquin
U.S. Patent 3,735,156. May 1973

Compensated folded resonator
Andrew Dienes, Erich Peter Ippen, Herwig Werner Kogelnik and Charles Vernon Shank
U.S. Patent 3,731,224. May 1973

Method and apparatus for compression of optical laser pulses
Paul L. Kelley, Robert Alan Fisher and T. Kenneth Gustafson
U.S. Patent 3,720,884. March 1973