Inventor

VANDEGRIFF JOSEPH W

US7 patents

⚠️ This page may combine multiple inventors who share the name “VANDEGRIFF JOSEPH W”. Patents are grouped by organization below to help distinguish them — per-person disambiguation is on the roadmap.

INTERMEDICS INC

5 patents

US4967746ANov 6, 1990

Dual chamber pacemaker with adjustable blanking and V-A extension

INTERMEDICS INC168 citations97

US4964407AOct 23, 1990

Method and apparatus for assuring pacer programming is compatible with the lead

INTERMEDICS INC63 citations95

US5103819AApr 14, 1992

Implantable cardiac stimulator with state machine for automatically controlling gain

INTERMEDICS INC52 citations90

US5226414AJul 13, 1993

Implantable cardiac pacemaker with extended atrial sensing

INTERMEDICS INC11 citations69

US6282447B1Aug 28, 2001

Cardiac stimulator with rate-adaptive PVARP

INTERMEDICS INC10 citations68

SULZER INTERMEDICS INC

2 patents

US5873894AFeb 23, 1999

Diagnostic test protocol in an implantable medical device

SULZER INTERMEDICS INC125 citations96

US5861009AJan 19, 1999

Implantable cardiac stimulator with rate-adaptive T-wave detection

SULZER INTERMEDICS INC145 citations96