Qi; Dahu
Patent Applications and Registrations
Patent applications and USPTO patent grants for Qi; Dahu.The latest application filed is for "seed sensor with lightpipe photodetect assembly".
- Qi; Dahu - Woodbury MN
| Patent | Date |
|---|---|
| Seed sensor with lightpipe photodetect assembly Grant 10,412,880 - Steffen , et al. Sept | 2019-09-17 |
| Seed Sensor With Lightpipe Photodetect Assembly App 20180359911 - Steffen; Ronald W. ; et al. | 2018-12-20 |
| Seed sensor with lightpipe photodetect assembly Grant 9,913,425 - Steffen , et al. March 13, 2 | 2018-03-13 |
| Apparatus and system for simultaneously measuring particle concentration and biocontaminants in an aerosol particle flow Grant 9,880,097 - Evenstad , et al. January 30, 2 | 2018-01-30 |
| Seed Sensor With Lightpipe Photodetect Assembly App 20160374263 - Steffen; Ronald W. ; et al. | 2016-12-29 |
| Apparatus And System For Characterizing An Aerosol Particle Flow App 20140354976 - Evenstad; Jim ; et al. | 2014-12-04 |
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