Inventor

DUFRESNE JOEL R

23 patents

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

DUFRESNE JOEL R

MINNESOTA MINING & MFG

Catheter and probe-catheter assembly

Electrical simulator for biological tissue having remote control

Biological tissue stimulator with adjustable high voltage power supply dependent upon load impedance

Output limited electrical stimulator for biological tissue

Ergonometric transcutaneous electrical nerve stimulator

Electrical stimulator for biological tissue utilizing output current monitor

Electronic stethoscope with idealized bell and idealized diaphragm modes

Electrical stimulator for biological tissue having mode control

Ergonometric stethoscope chestpiece

Ergonometric stethoscope chestpiece

Biological tissue stimulator with time-shared logic driving output timing and high voltage step-up circuit

Ergonometric stethoscope chestpiece

Transcutaneous electrical nerve stimulator

Electrical stimulator for biological tissue utilizing linear current output circuit

3M INNOVATIVE PROPERTIES CO

Centrifugal filling of sample processing devices

Sample processing device

Multilayer processing devices and methods

Integrated sample processing devices

DUFRESNE JOEL R

Power management for medical sensing devices employing multiple sensor signal feature detection

Modular electronic biosensor with interface for receiving disparate modules

Multilayer processing devices and methods

APPLERA CORP

Analytical device with lightguide Illumination of capillary and microgrooves arrays

CARSON LARRY J

Analytical device with lightguide illumination of capillary and microgroove arrays