| # | Country | Total Patents | |
|---|---|---|---|
| #1 | Canada | 2 | |
| #2 | United Kingdom | 2 | |
| #3 | United States | 2 | |
| #4 | Switzerland | 1 | |
| #5 | Germany | 1 | |
| #6 | France | 1 | |
| #7 | Netherlands | 1 | |
| #8 | Sweden | 1 |
| # | Industry | |
|---|---|---|
| #1 | Civil engineering | |
| #2 | Packaging and shipping | |
| #3 | Consumer goods |
| # | Technology | |
|---|---|---|
| #1 | Earth drilling | |
| #2 | Handling thin material | |
| #3 | Laundering textiles |
| # | Name | Total Patents |
|---|---|---|
| #1 | Koplin Harry | 3 |
| #2 | Bear Jacob | 2 |
| #3 | Tohar David | 2 |
| #4 | Prenner Amnon | 1 |
| #5 | Koplin H | 1 |
| #6 | Prenner Ammon | 1 |
| #7 | Harry Koplin | 1 |
| #8 | Prenner A | 1 |
| #9 | Watson Thomas S | 1 |
| #10 | Bear J | 1 |
| Publication | Filing date | Title |
|---|---|---|
| NL7504363A | Well casing with radial stub conduit - initially closed by water soluble plug and extendable into contact with producing formation | |
| DE2506273A1 | Well casing with radial stub conduit - initially closed by water soluble plug and extendable into contact with producing formation | |
| US3924677A | Device for use in the completion of an oil or gas well | |
| GB1127547A | Oil well completion | |
| GB661285A | Improvements in apparatus for folding sheet material articles | |
| US1801513A | Water heater and mixer | |
| CA463757A | Timer for folding apparatus | |
| CA795614A | Oil well completion |