| # | Country | Total Patents | |
|---|---|---|---|
| #1 | United States | 3 | |
| #2 | Switzerland | 1 | |
| #3 | Germany | 1 | |
| #4 | Denmark | 1 | |
| #5 | Spain | 1 | |
| #6 | United Kingdom | 1 | |
| #7 | Israel | 1 | |
| #8 | Norway | 1 | |
| #9 | Sweden | 1 |
| # | Industry | |
|---|---|---|
| #1 | Civil engineering | |
| #2 | Machine tools |
| # | Technology | |
|---|---|---|
| #1 | Swimming pools | |
| #2 | Soldering, welding and flame cutting |
| # | Name | Total Patents |
|---|---|---|
| #1 | Ellis H | 3 |
| #2 | Ogden John F | 2 |
| #3 | Ellis Herbert S | 1 |
| #4 | Herbert S Ellis | 1 |
| #5 | S Ellis Herbert | 1 |
| #6 | Patterson James A | 1 |
| Publication | Filing date | Title |
|---|---|---|
| US3916458A | Swimming pool circulation system | |
| US3923230A | Method of making a swimming pool gutter | |
| ES325682A3 | Improvements in the provision of the power supply circuit and overflow of swimming pools. (Machine-translation by Google Translate, not legally binding) | |
| US3363767A | Water distribution system for swimming pools |