PIPE LINE DEVELOPMENT CO has a total of 60 patent applications. Its first patent ever was published in 1967. It filed its patents most often in United States, Germany and Canada. Its main competitors in its focus markets mechanical elements, machines and machine tools are DIXON VALVE & COUPLING CO, BANJO CORP and NEW MACHINE CO LTD.
# | Country | Total Patents | |
---|---|---|---|
#1 | United States | 15 | |
#2 | Germany | 8 | |
#3 | Canada | 7 | |
#4 | France | 7 | |
#5 | United Kingdom | 7 | |
#6 | Belgium | 5 | |
#7 | Italy | 5 | |
#8 | Netherlands | 5 | |
#9 | China | 1 |
# | Industry | |
---|---|---|
#1 | Mechanical elements | |
#2 | Machines | |
#3 | Machine tools | |
#4 | Surface technology and coating |
# | Technology | |
---|---|---|
#1 | Pipes | |
#2 | Unspecified technologies | |
#3 | Venting or aerating devices | |
#4 | Devices for applying fluent materials | |
#5 | Soldering, welding and flame cutting | |
#6 | Sawing |
# | Name | Total Patents |
---|---|---|
#1 | Smith Edward B | 7 |
#2 | Spisak John A | 7 |
#3 | Smith William B | 7 |
#4 | Smith Joseph B | 5 |
#5 | Burkett Leny W | 5 |
#6 | Rogers Jr Elmer V | 5 |
#7 | Gardner Ronald D | 4 |
#8 | Rogers Elmer V Jr | 4 |
#9 | Smith J | 3 |
#10 | Ward Gene T | 3 |
Publication | Filing date | Title |
---|---|---|
CN102809020A | Split fitting for pipe | |
US5553898A | Hot-tapping sleeve | |
US4976372A | High-pressure hydraulic gun | |
US4832379A | Collet grip riser fitting | |
US4725082A | Coupling | |
US4535822A | Fitting installation device | |
US4355656A | Pipeline plug and bypass | |
US4370995A | Method and apparatus for prenotching a pipeline | |
US4049234A | Safety cock | |
US3954288A | Pipe fitting with self-testing seals and method | |
US3863667A | Combined shear head and housing plug | |
US3867964A | Apparatus for plugging pipe | |
US3785041A | Method for plugging pipe | |
US3833020A | Apparatus for plugging pipe | |
CA926319A | Method and apparatus for plugging pipe | |
US3685545A | Pipe repair system | |
US3603616A | Flange coupling repair ring |