Inventor

LUPER CHARLES R

US4 patents

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

SENSORMEDICS CORP

3 patents

US4448058AMay 15, 1984

Respiratory gas analysis instrument having improved volume calibration method and apparatus

SENSORMEDICS CORP119 citations94

US4537058AAug 27, 1985

Volume calibration syringe

SENSORMEDICS CORP21 citations79

US4509551AApr 9, 1985

Breath switch

SENSORMEDICS CORP18 citations70

BECKMAN INSTRUMENTS INC

1 patent

US4370152AJan 25, 1983

Gas dryer cartridge

BECKMAN INSTRUMENTS INC49 citations89