Issued Patents All Time
Showing 1–21 of 21 patents
| Patent # | Title | Co-Inventors | Date |
|---|---|---|---|
| 10471422 | Home position locating mechanism for manual pipette and manual pipette equipped with same | James S. Petrek | 2019-11-12 |
| 8871157 | Electronic pipette with two-axis controller | Michael C. SCHMITTDIEL, Haakon T. Magnussen, Jr., Andrew Vainshtein, Thomas A. Bell, Vintory L. Blake Moore | 2014-10-28 |
| 8397593 | Quick-set pipette with damped plunger | James S. Petrek, Michael C. SCHMITTDIEL | 2013-03-19 |
| 7819030 | Hybrid manual-electronic pipette | Haakon T. Magnussen, Jr., James S. Petrek | 2010-10-26 |
| 7788986 | Hybrid manual-electronic pipette | Haakon T. Magnussen, Jr., James S. Petrek, Christian K. Apple | 2010-09-07 |
| 7770475 | Hybrid manual-electronic pipette | Haakon T. Magnussen, Jr., James S. Petrek, Andrew Vainshtein, Christian K. Apple | 2010-08-10 |
| 7726212 | Hybrid manual-electronic pipette | Haakon T. Magnussen, Jr., Andrew Vainshtein, James S. Petrek | 2010-06-01 |
| 6645433 | Ergonomic return springless manual air displacement pipette | James S. Petrek, Kenneth Rainin | 2003-11-11 |
| 6428750 | Volume adjustable manual pipette with quick set volume adjustment | Kenneth Rainin, Haakon T. Magnussen, Jr., Phillip Yee, James S. Petrek | 2002-08-06 |
| 6365110 | Blowout springless manual air displacement pipette with mechanical assist for aiding in locating and maintaining pipette plunger at a home position | Kenneth Rainin | 2002-04-02 |
| 6352673 | Ergonomic return springless manual air displacement pipette | Kenneth Rainin | 2002-03-05 |
| 6254832 | Battery powered microprocessor controlled hand portable electronic pipette | Kenneth Rainin, Christopher Kelly, Haakon T. Magnujssen, Jr. | 2001-07-03 |
| 6007779 | Refill pack for pipette tip racks | David J. Lemieux, Christopher Kelly, Kent Gordon Moriarty | 1999-12-28 |
| 5849248 | Adjustable volume pipette with improved volume adjustment lock mechanism | — | 1998-12-15 |
| 5792424 | Manual pipette with delayed-action home position latch | Christopher Kelly, Kenneth Rainin, Haakon T. Magnussen, Jr. | 1998-08-11 |
| 5700959 | Manual pipette with magnet assist | — | 1997-12-23 |
| 5614153 | Pipette tip ejector | — | 1997-03-25 |
| 5441702 | Refill pack for pipette tip racks | David J. Lemieux, Paul K. Chadwick, Christopher Kelly, James S. Petrek, Kenneth Rainin +1 more | 1995-08-15 |
| 5392914 | Refill pack for pipette tip racks | David J. Lemieux, Paul K. Chadwick, Christopher Kelly, James S. Petrek, Kenneth Rainin +1 more | 1995-02-28 |
| 5364596 | Manual pipette with plunger velocity governor, home position latch and trigger release | Haakon T. Magnussen, Jr., Kenneth Rainin | 1994-11-15 |
| 4790236 | Floating piston coupling for plunger type pumps | Scott N. MacDonald | 1988-12-13 |