| # | Country | Total Patents | |
|---|---|---|---|
| #1 | EPO (European Patent Office) | 3 | |
| #2 | United States | 3 | |
| #3 | Australia | 2 | |
| #4 | Canada | 2 | |
| #5 | India | 2 | |
| #6 | WIPO (World Intellectual Property Organization) | 2 | |
| #7 | China | 1 | |
| #8 | Japan | 1 | |
| #9 | Republic of Korea | 1 | |
| #10 | Taiwan | 1 |
| # | Industry | |
|---|---|---|
| #1 | Chemical engineering | |
| #2 | Environmental technology | |
| #3 | Machines | |
| #4 | Measurement |
| # | Name | Total Patents |
|---|---|---|
| #1 | Uban Stephen A | 8 |
| #2 | Maxson Richard C | 8 |
| #3 | Watson Mark E | 4 |
| #4 | Norell Robert G | 4 |
| #5 | Geiser Kurt M | 4 |
| #6 | Evans Thomas W | 3 |
| #7 | Maxson Richard Charles | 2 |
| #8 | Holiday Ralph W | 2 |
| #9 | Hassler Leslie A | 2 |
| #10 | Holliday Ralph W | 2 |
| Publication | Filing date | Title |
|---|---|---|
| US5514284A | Method and apparatus for water treatment | |
| US5392527A | Annulus measuring device | |
| US5413749A | Process of making beads for a liquid purification bed | |
| KR0177512B1 | Slotted scallops or similar articles and method of making same | |
| AU657088B2 | Slotted scallops or similar articles and method of making same |