Issued Patents All Time
Showing 1–23 of 23 patents
| Patent # | Title | Co-Inventors | Date |
|---|---|---|---|
| 7027945 | Method of self-calibration of pulse rise and fall times | — | 2006-04-11 |
| 6737023 | Pipette with improved pipette tip mounting shaft | James S. Petrek, Kenneth Rainin, Steven T. Nielsen | 2004-05-18 |
| 6732128 | Reduction of periodic signals in pseudo-random noise produced with direct digital synthesis | — | 2004-05-04 |
| 6299841 | Bilaterally symmetrical battery powered microprocessor controlled lightweight hand-holdable electronic pipette | Kenneth Rainin, James S. Petrek | 2001-10-09 |
| D448853 | Pipette tip | Kenneth Rainin, James S. Petrek, Steven T. Nielsen | 2001-10-02 |
| 6254832 | Battery powered microprocessor controlled hand portable electronic pipette | Kenneth Rainin, Haakon T. Magnujssen, Jr., William D. Homberg | 2001-07-03 |
| D438981 | Pipette tip | Kenneth Rainin, James S. Petrek, Steven T. Nielsen | 2001-03-13 |
| 6197259 | Easy eject pipette tip | James S. Petrek | 2001-03-06 |
| D437940 | Pipette tip | Kenneth Rainin, James S. Petrek, Steven T. Nielsen | 2001-02-20 |
| 6188971 | Fast technique for converting temperature readings into values expressed in an engineering unit format | — | 2001-02-13 |
| 6168761 | Pipette with improved pipette tip and mounting shaft | James S. Petrek, Kenneth Rainin, Steven T. Nielsen | 2001-01-02 |
| D426642 | Electronic pipette | Kenneth Rainin, James S. Petrek | 2000-06-13 |
| 6007779 | Refill pack for pipette tip racks | David J. Lemieux, William D. Homberg, Kent Gordon Moriarty | 1999-12-28 |
| 5942992 | Fast technique for converting binary numbers into values expressed in an engineering unit format | — | 1999-08-24 |
| 5807524 | Pipette tip with pipette surface contamination protector | James S. Petrek | 1998-09-15 |
| 5792424 | Manual pipette with delayed-action home position latch | William D. Homberg, Kenneth Rainin, Haakon T. Magnussen, Jr. | 1998-08-11 |
| 5779984 | Pipette tip rack and refill pack containing large maximized volume freely nestable pipette tips | David J. Lemieux, Haakon T. Magnussen, Jr., James S. Petrek, Kenneth Rainin | 1998-07-14 |
| 5748105 | Fast technique for converting sampled analog measurements of a physical quanity to values expressed in engineering unit format | — | 1998-05-05 |
| 5642816 | Pipette tip rack refill plate hold down apparatus | Kenneth Rainin | 1997-07-01 |
| 5581247 | Fast technique for converting sampled analog measurements of a physical quantity to values expressed in engineering unit format | — | 1996-12-03 |
| 5441702 | Refill pack for pipette tip racks | David J. Lemieux, Paul K. Chadwick, James S. Petrek, Kenneth Rainin, Haakon T. Magnussen, Jr. +1 more | 1995-08-15 |
| 5392914 | Refill pack for pipette tip racks | David J. Lemieux, Paul K. Chadwick, James S. Petrek, Kenneth Rainin, Haakon T. Magnussen, Jr. +1 more | 1995-02-28 |
| 5053340 | In vitro test for dermal toxic properties | Hyman C. Bergman, Virginia C. Gordon | 1991-10-01 |