Issued Patents All Time
Showing 1–8 of 8 patents
| Patent # | Title | Co-Inventors | Date |
|---|---|---|---|
| D958679 | PH meter | — | 2022-07-26 |
| 10209210 | Measuring device using electrical conductivity and having function of informing electrode contamination | — | 2019-02-19 |
| 9557309 | Pen type of apparatus for measuring multiple water qualities | — | 2017-01-31 |
| 9508496 | Automatic salt meter having internal switching device | — | 2016-11-29 |
| 8500327 | Safety thermometer | — | 2013-08-06 |
| 8350571 | Electronic salt meter | — | 2013-01-08 |
| D608670 | Portable water tester with cap | Robert Samborn, Charles F. Lee, Jin Hyup Lee | 2010-01-26 |
| D604805 | Flow switch | Rob Samborn, Charles F. Lee, Jin Hyup Lee | 2009-11-24 |