CF

Chang-Dong Feng

RA Rosemount Analytical: 15 patents #1 of 97Top 2%
RO Rosemount: 7 patents #63 of 629Top 15%
BR Broadley-James: 4 patents #9 of 16Top 60%
TI Teledyne Industries: 2 patents #209 of 517Top 45%
📍 Long Beach, CA: #48 of 2,153 inventorsTop 3%
🗺 California: #18,844 of 386,348 inventorsTop 5%
Overall (All Time): #134,452 of 4,157,543Top 4%
28
Patents All Time

Issued Patents All Time

Showing 1–25 of 28 patents

Patent #TitleCo-InventorsDate
12391908 Reinforced gas-permeable membrane and reinforced gas-permeable well utilizing same Josh L. Rothman, Robert J. Garrahy, Scott T. Broadley 2025-08-19
12313586 Sensing element for use with media-preserving storage and calibration chamber Robert J. Garrahy, Scott T. Broadley, Bradley Joseph Sargent, Josh L. Rothman, Andrew Boyce 2025-05-27
12259354 Sensor with rotatable sensor element and pressure equalization mechanism Robert J. Garrahy, Scott T. Broadley, Bradley Joseph Sargent, Josh L. Rothman, Michael Ian Palmer 2025-03-25
12055511 Sensing element for use with media-preserving storage and calibration chamber Robert J. Garrahy, Scott T. Broadley, Bradley Joseph Sargent, Michael Ian Palmer, Jared H. Nathanson 2024-08-06
11613724 Single-use bioreactor sensor interface 2023-03-28
11384325 Single-use bioreactor port with multiple sensors Mark S. Schumacher 2022-07-12
11125696 Colorimetric analyzer with de-bubbling Bradley A. Butcher 2021-09-21
10788416 Multiple wavelength light source for colorimetric measurement Bradley A. Butcher 2020-09-29
10677717 Colorimetric analyzer with reagent diagnostics Hoang Nguyen, Jeffrey Lomibao 2020-06-09
10119951 On-line wet chemistry analyzer Bradley A. Butcher, Hoang Nguyen 2018-11-06
9945830 Standard solution with cleaning reagent for wet chemistry analyzer Hoang Nguyen 2018-04-17
9891162 Photometric measurement cell Bradley A. Butcher, Jeffrey Lomibao, Calin Ciobanu 2018-02-13
9868930 pH sensor for single use equipment Michalle Jane Alleman Adkins 2018-01-16
9029130 Unitary plastic conductivity sensor Barry W. Benton 2015-05-12
8900855 pH sensor integration to single use bioreactor/mixer Barry W. Benton, Dave Anderson, Fong Shyr YANG, Wayne B. Wood 2014-12-02
8828202 Detachable dissolved oxygen sensor for single use bioreactor/mixer 2014-09-09
8063644 Impedance measurement of a pH electrode Behzad Rezvani, Jeffrey Lomibao 2011-11-22
7837847 High purity water pH sensor with shielded flowing liquid junction Beth M. Covey, Wayne B. Wood 2010-11-23
7790006 Free chlorine sensor Jishou Xu, Joshua Garretson 2010-09-07
7640784 System for calibrating dissolved oxygen analyzers using compressed fluids during cleaning 2010-01-05
7323887 Conductivity sensor and manufacturing method therefor 2008-01-29
7208071 Amperometric sensor for low level dissolved oxygen with self-depleting sensor design 2007-04-24
7087150 Chloramine amperometric sensor 2006-08-08
7078909 Flow-through conductivity sensor Barry W. Benton, Behzad Rezvani 2006-07-18
6894502 pH sensor with internal solution ground Joe N. Covey, Beth M. Covey, Richard N. Baril, Roland H. Koluvek 2005-05-17