Issued Patents All Time
Showing 651–675 of 708 patents
| Patent # | Title | Co-Inventors | Date |
|---|---|---|---|
| 6312594 | Insert for a cyclone separator | Helmut Gerhard Conrad, Ted Szylowiec | 2001-11-06 |
| 6312588 | Water purifier | Helmut Gerhard Conrad, Ted Szylowiec, Richard Stanley Phillips | 2001-11-06 |
| 6312606 | Method for measuring the degree of treatment of a medium by a gas | — | 2001-11-06 |
| 6311490 | Apparatus for heat transfer within a heat engine | — | 2001-11-06 |
| 6309514 | Process for breaking chemical bonds | Richard Stanley Phillips, Andrew Richard Henry Phillips, Helmut Gerhard Conrad | 2001-10-30 |
| 6307358 | Method and apparatus for delivering power to a mechanical or electrical system | — | 2001-10-23 |
| 6293101 | Heat exchanger in the burner cup of a heat engine | — | 2001-09-25 |
| 6286310 | Heat engine | — | 2001-09-11 |
| 6280633 | Ozone sensor and method for use of same in water purification system | Richard M. Duff, Terry B. Bohrsen | 2001-08-28 |
| 6280143 | Blade for fluid pump | Darcy Parker | 2001-08-28 |
| 6279318 | Heat exchanger for a heat engine | — | 2001-08-28 |
| 6279319 | Heat engine | — | 2001-08-28 |
| 6277278 | Cyclone separator having a variable longitudinal profile | Helmut Gerhard Conrad, Ted Szylowiec | 2001-08-21 |
| 6274053 | Ozonation process | — | 2001-08-14 |
| 6269639 | Heat engine | — | 2001-08-07 |
| 6269640 | Heat engine | — | 2001-08-07 |
| 6261052 | Prandtl layer turbine | Helmut Gerhard Conrad, Ted Szylowiec | 2001-07-17 |
| 6261379 | Floating agitator housing for a vacuum cleaner head | Helmut Gerhard Conrad, Ted Szylowiec | 2001-07-17 |
| 6250324 | In-line venturi | Helmut Gerhard Conrad, Richard Stanley Phillips, Andrew Richard Henry Phillips, Gerald Earl Bowman, Michael John Preston | 2001-06-26 |
| 6251172 | Portable water recovery and dispensing apparatus | — | 2001-06-26 |
| 6251296 | Apparatus and method for separating particles from a cyclonic fluid flow | Dave Petersen | 2001-06-26 |
| 6243917 | Floating brush for a vacuum cleaner head | — | 2001-06-12 |
| 6238451 | Vacuum cleaner | Helmut Gerhard Conrad | 2001-05-29 |
| 6238177 | Prandtl layer turbine | Helmut Gerhard Conrad, Ted Szylowiec | 2001-05-29 |
| 6235207 | Method for measuring the degree of treatment of a medium by a gas | — | 2001-05-22 |