| # | Country | Total Patents | |
|---|---|---|---|
| #1 | United States | 7 | |
| #2 | Germany | 2 | |
| #3 | Canada | 1 | |
| #4 | WIPO (World Intellectual Property Organization) | 1 |
| # | Industry | |
|---|---|---|
| #1 | Machines | |
| #2 | Civil engineering | |
| #3 | Mechanical elements | |
| #4 | Electrical machinery and energy | |
| #5 | Audio-visual technology |
| # | Technology | |
|---|---|---|
| #1 | Shaping of plastics | |
| #2 | Certain plastics | |
| #3 | Unspecified technologies | |
| #4 | Unspecified technologies | |
| #5 | Pipes | |
| #6 | Fillers | |
| #7 | Installations for obtaining water | |
| #8 | Casings and printed circuits | |
| #9 | Earth drilling | |
| #10 | Installation of electric cables |
| # | Name | Total Patents |
|---|---|---|
| #1 | Medney Jonas | 11 |
| #2 | Klimpl Fred E | 2 |
| Publication | Filing date | Title |
|---|---|---|
| DE3428314A1 | Process for producing a perforated tube | |
| US4415613A | Method for making strengthened porous pipe and resulting product | |
| US4269436A | Pre-insulated pipe system | |
| US4312162A | Reinforced pole | |
| US4032708A | High voltage electrical transmission line and conduit therefor and method of making same | |
| US4037861A | Expansion joint | |
| US3860742A | Connection of plastic pipes with ground wires embedded therein | |
| US3879243A | Porous filament wound pipe and method for making same |