Issued Patents All Time
Showing 25 most recent of 44 patents
| Patent # | Title | Co-Inventors | Date |
|---|---|---|---|
| 11286185 | System and method of scum collection in wastewater treatment systems | Terence K. Reid | 2022-03-29 |
| 9776108 | Stationary cloth media filtration | Peter G. Baumann, Lloyd W. Johnson, Eugen O. Bergmann | 2017-10-03 |
| 9592568 | Subsea welding apparatus and method | Adam James O'Leary, Nathan Alan Paculba, Kevin Grant Munro, David E. Gibson | 2017-03-14 |
| 8329045 | Stationary cloth media filtration | Peter G. Baumann, Lloyd W. Johnson, Eugen O. Bergmann | 2012-12-11 |
| 7993532 | Method of filtration using cloth media and self-aligning backwash assembly | Peter G. Baumann, Lloyd W. Johnson, Eugen O. Bergmann | 2011-08-09 |
| 7981290 | Backwash assembly having a rotating backwash arm for cleaning cloth filter media | Peter G. Baumann | 2011-07-19 |
| 7976597 | Cyclonic separation apparatus | — | 2011-07-12 |
| 7955405 | Cyclonic separation apparatus | — | 2011-06-07 |
| 7955406 | Cyclonic separation apparatus | — | 2011-06-07 |
| 7892421 | Stationary cloth media filtration and self-aligning backwash assembly | Peter G. Baumann, Lloyd W. Johnson, Eugen O. Bergmann | 2011-02-22 |
| 7871527 | Processes for water and wastewater treatment, including stationary cloth media filtration | Paul Anthony Hughes, Lloyd W. Johnson, Peter G. Baumann | 2011-01-18 |
| 7833424 | Backwash assembly and method having a rotating backwash arm for cleaning cloth filter media | Peter G. Baumann | 2010-11-16 |
| 7807050 | Backwash assembly and method having a rotating backwash arm for cleaning cloth filter media | Peter G. Baumann | 2010-10-05 |
| 7655058 | Cyclonic vacuum cleaner | — | 2010-02-02 |
| 7441307 | Vacuum cleaning head | — | 2008-10-28 |
| 7338596 | Air activated decanter | — | 2008-03-04 |
| 7083716 | Air activated decanter | — | 2006-08-01 |
| D515756 | Floor tool for a cleaning appliance | Matthew James Roger Allard, Simon Langham, Wen Tong Chong | 2006-02-21 |
| D511231 | Attachment for cleaning appliance | Simon Nicholad Langham | 2005-11-01 |
| 6858140 | Processes and devices for water and wastewater treatment, including stationary cloth media filtration | Paul Anthony Hughes, Lloyd W. Johnson, Peter G. Baumann | 2005-02-22 |
| 5888199 | Ear cleaning device with a flexion part | Manuel L. Karell | 1999-03-30 |
| 5870185 | Apparatus and method for fluid analysis | Harold J. See, Kenneth D. Turner, Dan L. Cooper, Gary Workman, David Purves +3 more | 1999-02-09 |
| D314597 | Low impact stair climbing exercise apparatus | Timothy O. Armstrong, John W. Bull | 1991-02-12 |
| D304358 | Stair climbing exercise apparatus | Timothy O. Armstrong, John W. Bull | 1989-10-31 |
| D303695 | Skiing exerciser or similar article | Larry J. Graf, Randolph F. Miller | 1989-09-26 |