Feng; Chang-Dong
Patent Applications and Registrations
Patent applications and USPTO patent grants for Feng; Chang-Dong.The latest application filed is for "sensor with rotatable sensor element and pressure equalization mechanism".
Company Profile
3.25.37
- Feng; Chang-Dong - Long Beach CA
Patent Activity
| Patent | Date |
|---|---|
| Single-use bioreactor port with multiple sensors Grant 11,384,325 - Schumacher , et al. July 12, 2 | 2022-07-12 |
| Sensor With Rotatable Sensor Element And Pressure Equalization Mechanism App 20220187239 - Garrahy; Robert J. ; et al. | 2022-06-16 |
| Sensing Element For Use With Media-preserving Storage And Calibration Chamber App 20220128506 - Feng; Chang-Dong ; et al. | 2022-04-28 |
| Colorimetric analyzer with de-bubbling Grant 11,125,696 - Butcher , et al. September 21, 2 | 2021-09-21 |
| Multiple wavelength light source for colorimetric measurement Grant 10,788,416 - Butcher , et al. September 29, 2 | 2020-09-29 |
| Sensing Element For Use With Media-preserving Storage And Calibration Chamber App 20200217817 - Garrahy; Robert J. ; et al. | 2020-07-09 |
| Colorimetric analyzer with reagent diagnostics Grant 10,677,717 - Nguyen , et al. | 2020-06-09 |
| Reinforced Gas-permeable Membrane And Reinforced Gas-permeable Well Utilizing Same App 20190284518 - Feng; Chang-Dong ; et al. | 2019-09-19 |
| On-line wet chemistry analyzer Grant 10,119,951 - Butcher , et al. November 6, 2 | 2018-11-06 |
| Standard solution with cleaning reagent for wet chemistry analyzer Grant 9,945,830 - Feng , et al. April 17, 2 | 2018-04-17 |
| Colorimetric Analyzer With Reagent Diagnostics App 20180095027 - Nguyen; Hoang M. ; et al. | 2018-04-05 |
| Photometric measurement cell Grant 9,891,162 - Butcher , et al. February 13, 2 | 2018-02-13 |
| pH sensor for single use equipment Grant 9,868,930 - Adkins , et al. January 16, 2 | 2018-01-16 |
| Standard Solution With Cleaning Reagent For Wet Chemistry Analyzer App 20170212091 - Feng; Chang-Dong ; et al. | 2017-07-27 |
| Single-use Bioreactor Sensor Interface App 20170166852 - Feng; Chang-Dong | 2017-06-15 |
| SINGLE-USE pH SENSOR STORAGE SOLUTION App 20170059518 - Feng; Chang-Dong ; et al. | 2017-03-02 |
| Ph Sensor For Single Use Equipment App 20160312170 - Adkins; Michalle Jane Alleman ; et al. | 2016-10-27 |
| Single-use Bioreactor Port With Multiple Sensors App 20160298068 - Schumacher; Mark S. ; et al. | 2016-10-13 |
| On-line Wet Chemistry Analyzer App 20160077076 - Butcher; Bradley A. ; et al. | 2016-03-17 |
| Colorimetric Analyzer With De-bubbling App 20150233838 - Butcher; Bradley A. ; et al. | 2015-08-20 |
| Unitary plastic conductivity sensor Grant 9,029,130 - Feng , et al. May 12, 2 | 2015-05-12 |
| Photometric Measurement Cell App 20150099304 - Butcher; Bradley A. ; et al. | 2015-04-09 |
| Multiple Wavelength Light Source For Colorimetric Measurement App 20150099303 - Butcher; Bradley A. ; et al. | 2015-04-09 |
| pH sensor integration to single use bioreactor/mixer Grant 8,900,855 - Feng , et al. December 2, 2 | 2014-12-02 |
| Detachable dissolved oxygen sensor for single use bioreactor/mixer Grant 8,828,202 - Feng September 9, 2 | 2014-09-09 |
| Gas Detection System With Moisture Removal App 20140182358 - Feng; Chang Dong ; et al. | 2014-07-03 |
| pH SENSOR INTEGRATION TO SINGLE USE BIOREACTOR/MIXER App 20120178153 - Feng; Chang-Dong ; et al. | 2012-07-12 |
| Unitary Plastic Conductivity Sensor App 20120178151 - Feng; Chang-Dong ; et al. | 2012-07-12 |
| Detachable Dissolved Oxygen Sensor For Single Use Bioreactor/mixer App 20120160677 - Feng; Chang-Dong | 2012-06-28 |
| Impedance measurement of a pH electrode Grant 8,063,644 - Rezvani , et al. November 22, 2 | 2011-11-22 |
| High purity water pH sensor with shielded flowing liquid junction Grant 7,837,847 - Feng , et al. November 23, 2 | 2010-11-23 |
| Free chlorine sensor Grant 7,790,006 - Feng , et al. September 7, 2 | 2010-09-07 |
| Process Analytic Sensor With Moisture-scavenging Electrode Backfill App 20100084285 - Benton; Barry W. ; et al. | 2010-04-08 |
| System for calibrating dissolved oxygen analyzers using compressed fluids during cleaning Grant 7,640,784 - Feng January 5, 2 | 2010-01-05 |
| Multilayer Manufacturing For Conductivity Sensor App 20080297179 - Feng; Chang-Dong ; et al. | 2008-12-04 |
| Potentiometric Process Analytic Sensor With Isolated Temperature Sensor App 20080283399 - Feng; Chang-Dong ; et al. | 2008-11-20 |
| High purity water pH sensor with shielded flowing liquid junction App 20080237042 - Feng; Chang-Dong ; et al. | 2008-10-02 |
| System for calibrating dissolved oxygen analyzers using compressed fluids during cleaning App 20080067065 - Feng; Chang-Dong | 2008-03-20 |
| Impedance measurement of a PH electrode App 20080042665 - Rezvani; Behzad ; et al. | 2008-02-21 |
| Conductivity sensor and manufacturing method therefor Grant 7,323,887 - Feng January 29, 2 | 2008-01-29 |
| Arsenic measurement using anodic stripping voltammetry App 20070158211 - Feng; Chang-Dong ; et al. | 2007-07-12 |
| Amperometric sensor for low level dissolved oxygen with self-depleting sensor design Grant 7,208,071 - Feng April 24, 2 | 2007-04-24 |
| Electrochemical cell with improved flowing liquid junction App 20060278529 - Feng; Chang-Dong ; et al. | 2006-12-14 |
| Integrated optical device for luminescence sensing App 20060241351 - Feng; Chang-Dong ; et al. | 2006-10-26 |
| Modified ruthenium complex luminescence dye for oxygen sensing App 20060228804 - Xu; Joshua ; et al. | 2006-10-12 |
| Conductivity sensor and manufacturing method therefor App 20060219564 - Feng; Chang-Dong | 2006-10-05 |
| Chloramine amperometric sensor Grant 7,087,150 - Feng August 8, 2 | 2006-08-08 |
| Amperometric sensor with counter electrode isolated from fill solution App 20060163088 - Xu; Joshua ; et al. | 2006-07-27 |
| Flow-through conductivity sensor Grant 7,078,909 - Feng , et al. July 18, 2 | 2006-07-18 |
| Turbidity sensor App 20060055927 - Feng; Chang Dong | 2006-03-16 |
| Ion sensitive field effect transistor (ISFET) sensor with improved gate configuration App 20050156584 - Feng, Chang-dong | 2005-07-21 |
| Flow-through conductivity sensor App 20050127919 - Feng, Chang-Dong ; et al. | 2005-06-16 |
| pH sensor with internal solution ground Grant 6,894,502 - Feng , et al. May 17, 2 | 2005-05-17 |
| Free chlorine sensor App 20050029103 - Feng, Chang-Dong ; et al. | 2005-02-10 |
| Chloramine amperometric sensor App 20030205465 - Feng, Chang-Dong | 2003-11-06 |
| Amperometric sensor for low level dissolved oxygen with self-depleting sensor design App 20030205485 - Feng, Chang-Dong | 2003-11-06 |
| Amperometric sensor for low level dissolved oxygen with self-depleting sensor design Grant 6,602,401 - Feng August 5, 2 | 2003-08-05 |
| pH sensor with internal solution ground App 20030132755 - Feng, Chang-Dong ; et al. | 2003-07-17 |
| Electrochemical gas sensor Grant 6,019,879 - Chu , et al. February 1, 2 | 2000-02-01 |
uspto.report is an independent third-party trademark research tool that is not affiliated, endorsed, or sponsored by the United States Patent and Trademark Office (USPTO) or any other governmental organization. The information provided by uspto.report is based on publicly available data at the time of writing and is intended for informational purposes only.
While we strive to provide accurate and up-to-date information, we do not guarantee the accuracy, completeness, reliability, or suitability of the information displayed on this site. The use of this site is at your own risk. Any reliance you place on such information is therefore strictly at your own risk.
All official trademark data, including owner information, should be verified by visiting the official USPTO website at www.uspto.gov. This site is not intended to replace professional legal advice and should not be used as a substitute for consulting with a legal professional who is knowledgeable about trademark law.
| 