Yeung; Chi-Chung
Patent Applications and Registrations
Patent applications and USPTO patent grants for Yeung; Chi-Chung.The latest application filed is for "method and an apparatus for determining a presence or an amount of a polyamine or its derivative in a sample".
- Yeung; Chi-Chung - Sheung Shui HK
| Patent | Date |
|---|---|
| Method and an apparatus for determining a presence or an amount of a polyamine or its derivative in a sample Grant 11,181,501 - Vellaisamy , et al. November 23, 2 | 2021-11-23 |
| Electrochemical detector Grant 10,768,158 - Vellaisamy , et al. Sep | 2020-09-08 |
| Electrochemical detector Grant 10,634,654 - Vellaisamy , et al. | 2020-04-28 |
| Method And An Apparatus For Determining A Presence Or An Amount Of A Polyamine Or Its Derivative In A Sample App 20200080960 - Vellaisamy; A.L. Roy ; et al. | 2020-03-12 |
| Electrochemical Detector App 20180188222 - Vellaisamy; A.L. Roy ; et al. | 2018-07-05 |
| Electrochemical Detector App 20180149632 - Vellaisamy; A.L. Roy ; et al. | 2018-05-31 |
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