Inventor

BEATTIE JOHN

AU3 patents

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

DEW ENG AND DEVELOPMENT ULC

2 patents

US10683044B2Jun 16, 2020

Track changing apparatus and methods associated therewith

DEW ENG AND DEVELOPMENT ULC2 citations66

US9981704B2May 29, 2018

Track changing apparatus and methods associated therewith

DEW ENG AND DEVELOPMENT ULC3 citations66

BEATTIE JOHN

1 patent

US4917048AApr 17, 1990

Automatic trapping system

BEATTIE JOHN15 citations58