Issued Patents All Time
Showing 1–24 of 24 patents
| Patent # | Title | Co-Inventors | Date |
|---|---|---|---|
| 8945244 | Method and composition for improving fuel combustion | Robert W. Carroll, William Carroll, Michael Carroll | 2015-02-03 |
| 8287607 | Method and composition for improving fuel combustion | Robert W. Carroll, William Carroll, Michael Carroll | 2012-10-16 |
| 7503944 | Method and composition for improving fuel combustion | Robert W. Carroll, William Carroll, Michael Carroll | 2009-03-17 |
| 5108608 | Cyclone separator with multiple outlets and recycling line means | — | 1992-04-28 |
| 5100552 | Cyclone separator with enlarged underflow section | — | 1992-03-31 |
| 5055202 | Method and apparatus for maintaining predetermined cyclone separation efficiency | Robert W. Carroll, Charles M. Kalnins | 1991-10-08 |
| 5017288 | Cyclone separator | Martin T. Thew, Ian Charles Smyth | 1991-05-21 |
| 4995989 | Separating liquids | Charles M. Kalnins | 1991-02-26 |
| 4980064 | Cyclone separator with enlarged underflow section | — | 1990-12-25 |
| 4820414 | Cyclone separator | Gavan J. J. Prendergast | 1989-04-11 |
| 4816165 | Liquid separating method | Gavan J. J. Prendergast | 1989-03-28 |
| 4809000 | Transom member for sliding doors | — | 1989-02-28 |
| 4738779 | Cyclone separator | Gavan J. J. Prendergast | 1988-04-19 |
| 4721565 | Apparatus for handling mixtures | — | 1988-01-26 |
| 4719014 | Cyclone separator | — | 1988-01-12 |
| 4698152 | Oil recovery systems | — | 1987-10-06 |
| 4683061 | Outlet for cyclone separators | — | 1987-07-28 |
| 4673495 | Enclosed cyclone separators | Collin J. Phelps | 1987-06-16 |
| 4659461 | Liquid separating apparatus | — | 1987-04-21 |
| 4622150 | Overflow outlet for a cyclone separator and method of operation | — | 1986-11-11 |
| 4544486 | Cyclone separator | — | 1985-10-01 |
| 4510405 | Motor lock device | Colin J. Phelps | 1985-04-09 |
| 4464264 | Cyclone separator | — | 1984-08-07 |
| 4295297 | Revolving security door | William Carroll | 1981-10-20 |