| # | Country | Total Patents | |
|---|---|---|---|
| #1 | United States | 4 | |
| #2 | EPO (European Patent Office) | 3 | |
| #3 | WIPO (World Intellectual Property Organization) | 3 | |
| #4 | Brazil | 1 | |
| #5 | Canada | 1 |
| # | Industry | |
|---|---|---|
| #1 | Measurement |
| # | Technology | |
|---|---|---|
| #1 | Analysing materials |
| # | Name | Total Patents |
|---|---|---|
| #1 | Wright Hubert A | 11 |
| #2 | Warren Wayne | 1 |
| #3 | Kasameyer Robert E | 1 |
| Publication | Filing date | Title |
|---|---|---|
| US6584831B1 | Fast-recovery viscometer | |
| US5025656A | Densitometer | |
| US4864849A | Viscometer | |
| US4627272A | Viscometer |