1
Fred M Cohen: Pacing systems and methods for control of the ventricular activation sequence. Richard G Harrer, Charles E Cates, December 29, 1992: US05174289 (229 worldwide citation)

Apparatus and methods for improving the ventricular activation sequence of the heart by pacing at an advantageous selected ventricular location to achieve shortening of the QRS complex or pacing at multiple advantageous selected ventricular locations, either simulataneously or with a programmed dela ...


2
Fred M Cohen: Methods for control of the ventricular activation sequence. Richard G Harrer, December 7, 1993: US05267560 (173 worldwide citation)

Apparatus and methods for improving the ventricular activation sequence of the heart by pacing at an advantageous selected ventricular location to achieve shortening of the QRS complex or pacing at multiple advantageous selected ventricular locations, either simultaneously or with a programmed delay ...


3
Fred M Cohen: Artificial heart valve. Charles P Padgett Jr, July 8, 1986: US04599081 (38 worldwide citation)

An artificial heart valve of turbine-like construction includes a rotor that translates and rotates to cause a plurality of rotor blades to either occlude or unocclude spaces between adjacent ones of a plurality of stator blades.