Patents/Inventors

Richard William Keller

Spokane Valley, WAUS5 patents

6 Patents

US124859402025
Automated Tie Marking
0 cites
US122968742025
Automated Tie Marking
BNSF Railway Company
0 cites
US122912482025
Automated Tie Marking
BNSF Railway Company
0 cites
US120771972024
Automated Tie Marking
BNSF Railway Company
0 cites
US116288692023
Automated Tie Marking
BNSF Railway Company
0 cites
US115657302023
Automated Tie Marking
0 cites