Inventor
John E. Field
Inventor
Dorrington, CA, US
Overview
Patents· 20 as inventor
Public. Assignee & technology derived from the patent record. Each patent links to its LexDana page.
H01Jprimary
H01JElectric discharge tubes or discharge lamps33%
G09GArrangements or circuits for control of indicating devices using static means to present variable information15%
G01RMeasuring electric variables10%
A63BApparatus for physical training, gymnastics, swimming, climbing, or fencing5%
Y10STechnical subjects covered by former uspc cross-reference art collections [xracs] and digests5%
A61BDiagnosis3%
F24DDomestic- or space-heating systems, e.g. central heating systems3%
F24HFluid heaters, e.g. water or air heaters, having heat-generating means, e.g. heat pumps, in general3%
F24SSolar heat collectors3%
F28DHeat-exchange apparatus, not provided for in another subclass, in which the heat-exchange media do not come into direct contact3%
PatentTitleYear
10,900,667Energy storage systems2021D0881502Flag headstone20207,802,770'Mechanical climbing aid of the cam type'20107,740,223'Mechanical climbing aid of the cam type'20106,545,500'Use of localized temperature change in determining the location and character of defects in flat-panel displays'20036,414,428'Flat-panel display with intensity control to reduce light-centroid shifting'20026,406,346'Fabrication of flat-panel display having spacer with laterally segmented face electrode'20026,392,750'Use of scattered and/or transmitted light in determining characteristics, including dimensional information, of object such as part of flat-panel display'20026,384,527'Flat panel display with reduced electron scattering effects'20026,323,653'Magnetic detection of short circuit defects in plate structure'20016,307,382'Device and method for magnetically sensing current in plate structure'20016,118,279'Magnetic detection of short circuit defects in plate structure'20006,107,806'Device for magnetically sensing current in plate structure'20006,107,728'Structure and fabrication of electron-emitting device having electrode with openings that facilitate short-circuit repair'20006,107,731'Structure and fabrication of flat-panel display having spacer with laterally segmented face electrode'20006,049,165'Structure and fabrication of flat panel display with specially arranged spacer'20005,859,502'Spacer locator design for three-dimensional focusing structures in a flat panel display'19995,831,392'Device for conditioning control signal to electron emitter, preferably so that collected electron current varies linearly with input control voltage'19985,532,548'Field forming electrodes on high voltage spacers'19964,926,859'A medical treatment device for treating an undesired formation in a living body'1990Career & activity timeline
Assembled from patent assignee/location history and declaration credentials.
1990Patents assigned to DAVIES PETER N (1)· patent assignee history
1990Patents assigned to DEAR JOHN P (1)· patent assignee history
1998–2002Patents assigned to CANDESCENT TECH CORP (13)· patent assignee history
1998–2001Based in Santa Cruz, CA, US· patent location history
2000–2010Based in Dorrington, CA, US· patent location history
2002Patents assigned to CANDESCENT INTELLECTUAL PROP (2)· patent assignee history
2003Based in Camp Connell, CA, US· patent location history
2010Patents assigned to METOLIUS MOUNTAIN PRODUCTS INC (2)· patent assignee history
2020Based in Sacramento, CA, US· patent location history
2021Based in Berwickshire, GB· patent location history
Inventor activity
Assignee and location history derived from the patent record.
Assignees
| Assignee | Patents | Span |
|---|---|---|
| CANDESCENT TECH CORP | 13 | 1998–2002 |
| CANDESCENT INTELLECTUAL PROP | 2 | 2002 |
| METOLIUS MOUNTAIN PRODUCTS INC | 2 | 2010 |
| DAVIES PETER N | 1 | 1990 |
| DEAR JOHN P | 1 | 1990 |
Locations
| Location | Patents | Span |
|---|---|---|
| Dorrington, California, US | 8 | 2000–2010 |
| Santa Cruz, California, US | 6 | 1998–2001 |
| Berwickshire, GB | 1 | 2021 |
| Sacramento, California, US | 1 | 2020 |
| Camp Connell, California, US | 1 | 2003 |