CAMPBELL STERLING H has a total of 36 patent applications. Its first patent ever was published in 1900. It filed its patents most often in United States and Canada. Its main competitors in its focus markets transport, machines and mechanical elements are WILLIAM H MINER, NAT MALLEABLE & STEEL CASTINGS and BUCKEYE MALLEABLE IRON AND COUPLER COMPANY.
# | Country | Total Patents | |
---|---|---|---|
#1 | United States | 29 | |
#2 | Canada | 7 |
# | Industry | |
---|---|---|
#1 | Transport | |
#2 | Machines | |
#3 | Mechanical elements | |
#4 | Machine tools |
# | Technology | |
---|---|---|
#1 | Couplings | |
#2 | Rail vehicle suspensions | |
#3 | Unspecified technologies | |
#4 | Vehicle brake control systems | |
#5 | Clutches and brakes | |
#6 | Making forged metal products | |
#7 | Shafts | |
#8 | Railway brakes |
# | Name | Total Patents |
---|---|---|
#1 | Campbell Sterling H | 36 |
Publication | Filing date | Title |
---|---|---|
US1502459A | Brake-shoe key | |
US1508380A | Coupler-release rigging | |
US1482885A | Coupler release rigging | |
US1482884A | Coupler release rigging | |
US1508379A | Coupler-release rigging | |
US1453002A | Coupling-release rigging | |
US1452358A | Coupling-release rigging | |
US1387685A | Coupling-release rigging | |
US1455386A | Coupler-release rigging | |
US1396726A | Coupling-release rigging | |
US1396725A | Coupling-release rigging | |
US1391716A | Brake-rod jaw | |
US1358363A | Bracket for uncoupling devices | |
US1358362A | Uncoupling device | |
US1358361A | Connection for pin-lifters | |
US1375361A | Brake-rod jaw | |
US1387684A | Attachment for pin-lifters | |
US1297440A | Bracket for uncoupling-rods. | |
US1247221A | Uncoupling device for railway-cars. | |
US1204405A | Wedge for journal-bearings. |