Issued Patents All Time
Showing 1–18 of 18 patents
| Patent # | Title | Co-Inventors | Date |
|---|---|---|---|
| 12285557 | Systems and methods for treating blood | — | 2025-04-29 |
| 12246123 | Systems and methods for treating blood | — | 2025-03-11 |
| 11344662 | Systems and methods for treating blood | Alexander Patrick Spearman | 2022-05-31 |
| 11219709 | Systems and methods for treating blood | Shelly Amann | 2022-01-11 |
| 11147907 | Systems and methods for treating blood | — | 2021-10-19 |
| 11033673 | Systems and methods for treating blood | — | 2021-06-15 |
| 10946134 | Systems and methods for treating blood | — | 2021-03-16 |
| 10773012 | Systems and methods for treating blood | — | 2020-09-15 |
| 9555184 | Systems and methods for treating blood | — | 2017-01-31 |
| 9028437 | Method for delivering an agent to the abdomen | Douglas E. Ott, Robert I. Gray, Duane Lloyd | 2015-05-12 |
| 8147442 | Method and apparatus for delivering an agent to the abdomen | Douglas E. Ott, Robert I. Gray, Duane Lloyd | 2012-04-03 |
| 7918816 | Method and apparatus for delivering an agent to the abdomen | Douglas E. Ott, Robert I. Gray, Duane Lloyd | 2011-04-05 |
| 7744557 | Method and apparatus for delivering an agent to the abdomen | Douglas E. Ott, Robert I. Gray, Duane Lloyd | 2010-06-29 |
| 7731704 | Method and apparatus for delivering an agent to the abdomen | Douglas E. Ott, Robert I. Gray, Duane Lloyd | 2010-06-08 |
| 6692639 | Stacked conical filtration or separation apparatus | Michael R. Spearman, Majid Zia | 2004-02-17 |
| 5284997 | Two step filter and process | Michael R. Spearman, Eric C. Stender | 1994-02-08 |
| 4836931 | Reinforced filter tube and method of making the same | Michael R. Spearman, Daniel M. Spearman | 1989-06-06 |
| 4814033 | Method of making a reinforced filter tube | Michael R. Spearman, Daniel M. Spearman | 1989-03-21 |