Inventor
John E. Freeman
Inventor
Big Spring, TX, US
Overview
Patents· 13 as inventor
Public. Assignee & technology derived from the patent record. Each patent links to its LexDana page.
Y10Tprimary
Y10TTechnical subjects covered by former us classification14%
B81CProcesses or apparatus specially adapted for the manufacture or treatment of microstructural devices or systems11%
C09DCoating compositions, e.g. paints, varnishes or lacquers11%
B81BMicrostructural devices or systems, e.g. micromechanical devices9%
B05DProcesses for applying fluent materials to surfaces, in general6%
C08KUse of inorganic or non-macromolecular organic substances as compounding ingredients6%
E21BEarth or rock drilling6%
F04BPositive-displacement machines for liquids6%
H04RLoudspeakers, microphones, gramophone pick-ups or like acoustic electromechanical transducers6%
B29DProducing particular articles from plastics or from substances in a plastic state3%
PatentTitleYear
7,134,179'Process of forming a capacitative audio transducer'20066,829,814'Process of making an all-silicon microphone'20046,750,152'Method and apparatus for electrically testing and characterizing formation of microelectric features'20046,428,713'MEMS sensor structure and microfabrication process therefor'20025,969,078'Compositions and methods for a protective surface coating useful to repair damaged surfaces'19995,936,022'Compositions and methods for a high performance protective coating'19994,968,538'Abrasion resistant coating and method of application'19904,939,037'Composite sign post'19904,789,567'Abrasion resistant coating and method of application'19884,767,291'Single valve pump'19884,475,404'Pull tester'19844,422,508'Methods for pulling sucker rod strings'19834,360,288'Fiberglass sucker rod construction'1982Career & activity timeline
Assembled from patent assignee/location history and declaration credentials.
1982–1984Patents assigned to FIBERFLEX PROD INC (3)· patent assignee history
1982–1999Based in Big Spring, TX, US· patent location history
1988–1990Patents assigned to FREEMAN JOHN E (3)· patent assignee history
1990–1999Patents assigned to FREECOM INC (3)· patent assignee history
1999Based in Big Springs, TX, US· patent location history
2002–2006Patents assigned to DELPHI TECH INC (4)· patent assignee history
2002–2006Based in Kempton, IN, US· patent location history
Inventor activity
Assignee and location history derived from the patent record.
Assignees
| Assignee | Patents | Span |
|---|---|---|
| DELPHI TECH INC | 4 | 2002–2006 |
| FIBERFLEX PROD INC | 3 | 1982–1984 |
| FREECOM INC | 3 | 1990–1999 |
| FREEMAN JOHN Eself | 3 | 1988–1990 |
Locations
| Location | Patents | Span |
|---|---|---|
| Big Spring, Texas, US | 8 | 1982–1999 |
| Kempton, IN, US | 4 | 2002–2006 |
| Big Springs, Texas, US | 1 | 1999 |