Duffield; Michael John
Patent Applications and Registrations
Patent applications and USPTO patent grants for Duffield; Michael John.The latest application filed is for "combining arrangement".
- Duffield; Michael John - Wivenhoe GB
- Duffield; Michael John - Great Bentley GB
- Duffield; Michael John - Essex GB
| Patent | Date |
|---|---|
| Combining arrangement Grant 10,164,316 - Duffield , et al. Dec | 2018-12-25 |
| Combining Arrangement App 20160322692 - Duffield; Michael John ; et al. | 2016-11-03 |
| Output window with venting means for use with a vacuum electron device Grant 8,237,366 - Duffield , et al. August 7, 2 | 2012-08-07 |
| Optical signal demodulators Grant 7,259,901 - Parsons , et al. August 21, 2 | 2007-08-21 |
| Optical signal demodulator App 20060056845 - Parsons; Nicholas John ; et al. | 2006-03-16 |
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