DOUBLE BODY BOLSTER CO has a total of 74 patent applications. Its first patent ever was published in 1906. It filed its patents most often in United States. Its main competitors in its focus markets transport are NAT STEEL CAR LTD, SHEFFIELD GEORGE HARRISON and BETTENDORF WILLIAM P.
# | Country | Total Patents | |
---|---|---|---|
#1 | United States | 74 |
# | Industry | |
---|---|---|
#1 | Transport |
# | Technology | |
---|---|---|
#1 | Rail vehicle suspensions | |
#2 | Railway bodies | |
#3 | Couplings | |
#4 | Railway brakes | |
#5 | Locomotives | |
#6 | Vehicle brake control systems |
# | Name | Total Patents |
---|---|---|
#1 | Pflager Harry M | 36 |
#2 | Westlake Charles T | 21 |
#3 | Howard Clarence H | 20 |
#4 | Frede Charles F | 17 |
#5 | Johnson Boone V H | 4 |
#6 | Shallenberger Charles S | 3 |
#7 | Clarence H Howard | 1 |
#8 | Pulliam Oswald S | 1 |
#9 | Flager Harry M | 1 |
#10 | Dath Charles E | 1 |
Publication | Filing date | Title |
---|---|---|
US1099376A | Trailer-truck frame for locomotives. | |
US1105300A | Six-wheel car-truck. | |
US1102620A | Center-bolster for six-wheel car-trucks. | |
US1107857A | Equalizing car-truck. | |
US1105299A | Car-frame construction. | |
US1105265A | Support for axle-driven light-generators. | |
US1068529A | Car-truck. | |
US1080206A | Six-wheel-car-truck brake. | |
US1068657A | Dynamo-suspension bar for car-trucks. | |
US1080557A | Truck construction. | |
US1080556A | Truck construction. | |
US1080559A | Truck construction. | |
US1080558A | Truck construction. | |
US1080555A | Truck construction. | |
US1073706A | Car end frame. | |
US1080163A | Car-frame construction. | |
US1072646A | Car end frame. | |
US1056445A | Car-frame construction. | |
US1097819A | Truck-frame. | |
US1072645A | Car-truck. |