Patents/Inventors

James D. Johnson

Algonquin, ILUS3 patents

4 Patents

US124823182025
Movable Barrier Operator with Ultra-wideband Device
THE CHAMBERLAIN GROUP LLC.
0 cites
US120205242024
Movable Barrier Operator System and Methods of Installation and Use
THE CHAMBERLAIN GROUP LLC.
0 cites
US116036992023
Automatic Control of a Movable Barrier
The Chamberlain Group LLC
0 cites
US116001262023
Movable Barrier Operator System and Methods of Installation and Use
The Chamberlain Group LLC
0 cites