Patent Leaderboard
USPTO Patent Rankings Data through Dec 31, 2025
DR

David J. Roach — 21 Patents

PRProteinsimple: 12 patents #2 of 40Top 5%
ABAmersham Biosciences: 5 patents #3 of 40Top 8%
MLMolecular Dynamics Limited: 3 patents #5 of 38Top 15%
COCoulter: 1 patents #140 of 155Top 95%
Los Gatos, CA: #409 of 2,986 inventorsTop 15%
California: #27,449 of 386,348 inventorsTop 8%
Overall (All Time): #201,324 of 4,157,543Top 5%
21 Patents All Time
David J. Roach has been granted 21 US patents while listed as an inventor at Proteinsimple. The first was granted in 1998 and the most recent in August 2025. David J. Roach ranks #201,324 of 4,157,543 US inventors in our database (top 4.8%). Patent records list David J. Roach in Los Gatos, CA, US.

Issued Patents All Time

Showing 1–21 of 21 patents

Patent #TitleCo-InventorsDateApprox Value ⓘ
12383896 Systems and methods for fractionation and collection of analytes in a sample Cheng Zhou, Hui Xu, Roland Y. Wang, Jessica Dermody, Tom Weisan Yang +1 more 2025-08-12
12216080 Systems and methods for electrophoretic separation and analysis of analytes Joshua I. Molho, Kelly Gardner, Danh C. Tran, Eric Jabart, David Nilson +3 more 2025-02-04
12216082 Systems and methods for capillary electrophoresis, isoelectric point, and molecular weight analysis Tom Weisan Yang, Hui Xu 2025-02-04
12023670 Systems and methods for fractionation and collection of analytes in a sample Cheng Zhou, Hui Xu, Roland Y. Wang, Jessica Dermody, Tom Weisan Yang +1 more 2024-07-02
11933759 Apparatus, systems, and methods for capillary electrophoresis Tom Weisan Yang 2024-03-19
11726058 Systems and methods for capillary electrophoresis, isoelectric point, and molecular weight analysis Tom Weisan Yang, Hui Xu 2023-08-15
11420202 Systems and methods for fractionation and collection of analytes in a sample Cheng Zhou, Hui Xu, Roland Y. Wang, Jessica Dermody, Tom Weisan Yang +1 more 2022-08-23
11237131 Systems and methods for electrophoretic separation and analysis of analytes Joshua I. Molho, Kelly Gardner, Danh C. Tran, Eric Jabart, David Nilson +3 more 2022-02-01
10794860 Systems and methods for capillary electrophoresis, isoelectric point, and molecular weight analysis Tom Weisan Yang, Hui Xu 2020-10-06
9766206 Apparatus, systems, and methods for capillary electrophoresis Tom Weisan Yang 2017-09-19
8940232 Automated micro-volume assay system Tom Weisan Yang, Roger A. O'Neill, Robert T. Loder, Jr. 2015-01-27
8021611 Automated micro-volume assay system Tom Weisan Yang, Roger A. O'Neill, Robert T. Loder, Jr., Peter Vander Horn 2011-09-20
6870185 Integrated microchip design Jing Ni, Iuliu Ioan Blaga, Owe Salven, Stevan B. Jovanovich 2005-03-22
6787111 Apparatus and method for filling and cleaning channels and inlet ports in microchips used for biological analysis Robert T. Loder, Jr., Thomas M. Armstrong, Dennis W. Harris, Stevan B. Jovanovich, Richard F. Johnston 2004-09-07
6764648 Robotic microchannel bioanalytical instrument Robert T. Loder, Jr., Thomas M. Armstrong, Dennis W. Harris, Stevan B. Jovanovich, Richard F. Johnston 2004-07-20
6627446 Robotic microchannel bioanalytical instrument Robert T. Loder, Jr., Thomas M. Armstrong, Dennis W. Harris, Stevan B. Jovanovich, Richard F. Johnston 2003-09-30 $628,000
6581012 Automated laboratory software architecture Michael Aryev, Andrea Krensky, Fredric W. Huls, Gerardo G. Garcia, Bin Qin 2003-06-17
6551839 Method of merging chemical reactants in capillary tubes Stevan B. Jovanovich, Gregory J. Ronan, Richard F. Johnston 2003-04-22 $669,000
6423536 Low volume chemical and biochemical reaction system Stevan B. Jovanovich, Andrew Hadd, Bo Hellman 2002-07-23
6190616 Capillary valve, connector, and router Stevan B. Jovanovich, Gregory J. Ronan, Richard F. Johnston 2001-02-20
5770151 High-speed liquid deposition device for biological molecule array formation Richard F. Johnston 1998-06-23 $1,968,000