Issued Patents All Time
Showing 1–23 of 23 patents
| Patent # | Title | Co-Inventors | Date |
|---|---|---|---|
| 9234833 | System and method for liquid delivery evaluation using solutions with multiple light absorbance spectral features | Ceara McNally, Charles A. Ewing, John Thomas Bradshaw | 2016-01-12 |
| 9091582 | Vertical and horizontal beam hybrid pipette calibration system | — | 2015-07-28 |
| 8850903 | Apparatus and method for aspirating and dispensing liquid | Kirby Pilcher, David L. Bohnsack, Charles A. Ewing, George Rodrigues, John Thomas Bradshaw +1 more | 2014-10-07 |
| 8692987 | Artifact apparatus to mimic reflection losses of solution-filled microtiter plate readers and related uses thereof | John Thomas Bradshaw | 2014-04-08 |
| 8404158 | System and method for liquid delivery evaluation using solutions with multiple light absorbance spectral features | Ceara McNally, Charles A. Ewing, John Thomas Bradshaw | 2013-03-26 |
| 8096197 | Air displacement liquid delivery system and related method | David L. Bohnsack, George Rodrigues, Marc Boillat | 2012-01-17 |
| 7998747 | Quantitative dual-dye photometric method for determining dilution impact | John Thomas Bradshaw, Keith J. Albert, Tanya R. Knaide, Ceara McNally, Alex Rogers | 2011-08-16 |
| 7919327 | Quantitative dual-dye photometric method for determining dilution impact | John Thomas Bradshaw, Keith J. Albert, Tanya R. Knaide, Ceara McNally, Alex Rogers | 2011-04-05 |
| 7870797 | Apparatus and method for aspirating and dispensing liquid | Kirby Pilcher, David L. Bohnsack, Charles A. Ewing, George Rodrigues, John Thomas Bradshaw +1 more | 2011-01-18 |
| 7791716 | System and method for liquid delivery evaluation using solutions with multiple light absorbance spectral features | Ceara McNally, John Thomas Bradshaw, Charles A. Ewing, Keith J. Albert, Tanya R. Knaide +1 more | 2010-09-07 |
| 7772008 | Method and apparatus for determining liquid volume | Ceara McNally, Charles A. Ewing | 2010-08-10 |
| 7640787 | Pipette verification device and pipette | David L. Bohnsack, Marc Boillat | 2010-01-05 |
| 7187455 | Photometric calibration of liquid volumes | — | 2007-03-06 |
| 7061608 | Apparatus and method for calibration of spectrophotometers | John Thomas Bradshaw | 2006-06-13 |
| 6741365 | Photometric calibration of liquid volumes | — | 2004-05-25 |
| 5492673 | Reagent system for calibration of pipettes and other volumetric measuring devices | Ann Rundell | 1996-02-20 |
| 5298978 | Pipette calibration system | Ann Rundell | 1994-03-29 |
| 5247345 | Photometer having a long lamp life, reduced warm-up period and resonant frequency mixing | — | 1993-09-21 |
| 5092677 | Photometer having a long lamp life, reduced warm-up period and resonant frequency mixing | — | 1992-03-03 |
| 5064282 | Photometric apparatus and method for measuring hemoglobin | — | 1991-11-12 |
| 4797000 | Comparative colorimeter | — | 1989-01-10 |
| 4591517 | Web dryer with variable ventilation rate | Rodger E. Whipple | 1986-05-27 |
| 4336721 | Gas analyzer | — | 1982-06-29 |