Patents/Inventors

Douglas John Criddle

Sioux Falls, SDUS4 patents

5 Patents

US119939672024
Sliding Door Rollers
Amesbury Group, Inc.
0 cites
US118792812024
Automatic Window Sash Interlock
Amesbury Group, Inc.
0 cites
US118348662023
Flexible Coupling for Electronic Deadbolt Systems
Amesbury Group, Inc.
0 cites
US116617712023
Electronic Drive for Door Locks
Amesbury Group, Inc.
0 cites
US116349312023
Modular Electronic Deadbolt Systems
Amesbury Group, Inc.
0 cites