Inventor

PETRO JOHN P

US4 patents

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

PETRO JOHN P

3 patents

US8471425B2Jun 25, 2013

Rotor-stator structures including boost magnet structures for magnetic regions having angled confronting surfaces in rotor assemblies

PETRO JOHN P9 citations79

US8330316B2Dec 11, 2012

Rotor-stator structures including boost magnet structures for magnetic regions in rotor assemblies disposed external to boundaries of conically-shaped spaces

PETRO JOHN P7 citations79

US7004446B2Feb 28, 2006

Bistable dual-magnet valve unit

PETRO JOHN P13 citations79

(unassigned)

1 patent

US5752811AMay 19, 1998

Linear actuator mechanism for converting rotary to linear movement including one end pulley Line attached to the stationary anchor and other end attached to the take-up drum

34 citations87