P

Inventor

PORPER ROBERT P

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

(unassigned)

3 patents
US6401288B1Jun 11, 2002

Mechanical toothbrush with opposed dual heads and having oscillatory movement

81 citations96
US6138310AOct 31, 2000

Electric toothbrush having opposed bristle heads

112 citations96
US6381794B1May 7, 2002

Electric toothbrush having dual heads with oscillatory movement

45 citations91

PLAKADENT INT LTD

1 patent
USD259977SJul 28, 1981

Toothbrush

PLAKADENT INT LTD53 citations91

PORPER ROBERT P

1 patent
US4137593AFeb 6, 1979

Toothbrush and method of making the same

PORPER ROBERT P33 citations87