Inventor
John J. Kuhn
Inventor
Allison Park, PA, US
Overview
Patents· 16 as inventor
Public. Assignee & technology derived from the patent record. Each patent links to its LexDana page.
C03Bprimary
C03BManufacture, shaping, or supplementary processes18%
B61LGuiding railway traffic15%
G05DSystems for controlling or regulating non-electric variables12%
Y10STechnical subjects covered by former uspc cross-reference art collections [xracs] and digests9%
B65HHandling thin or filamentary material, e.g. sheets, webs, cables6%
H03FAmplifiers6%
H03KPulse technique6%
D01GPreliminary treatment of fibres, e.g. for spinning3%
D02HWarping, beaming or leasing3%
G01KMeasuring temperature3%
PatentTitleYear
6,581,257'Process for making a warp beam of untwisted fiberglass strands'20036,512,788'RF output spectrum measurement analyzer and method'20035,071,459'Bushing balance controller for multiple segment bushings'19914,978,866'Ramp circuit for control loop'19904,931,075'High current multiterminal bushing controller'19904,775,400'Method of controlling glass fiber formation and control system'19884,746,344'Fiber forming bushing and method for providing'19884,594,087'Three-terminal controller for fiber glass bushing'19864,324,376'Railroad highway crossing warning system'19824,320,315'Fail-safe and gate circuit'19824,314,374'High power audio frequency transmitter'19824,307,860'Railroad grade crossing constant warning protection system'19814,306,694'Dual signal frequency motion monitor and broken rail detector'19814,301,490'Electronic overload protection circuit'19814,136,315'Low and high frequency oscillators having common voltage regulator circuit'19794,079,444'D.C. to A.C. electronic inverter with overload protection'1978Career & activity timeline
Assembled from patent assignee/location history and declaration credentials.
1978–1982Patents assigned to WESTINGHOUSE AIR BRAKE CO (3)· patent assignee history
1978–1982Based in Allison Park, PA, US· patent location history
1981–1982Patents assigned to AMERICAN STANDARD INC (5)· patent assignee history
1986–1991Patents assigned to PPG INDUSTRIES INC (6)· patent assignee history
1986Based in Pittsburgh, PA, US· patent location history
1988–1991Based in Gibsonia, PA, US· patent location history
2003Patents assigned to AGILENT TECHNOLOGIES INC (1)· patent assignee history
2003Patents assigned to DIELECTRIC SOLUTIONS LLC (1)· patent assignee history
2003Based in Portersville, PA, US· patent location history
2003Based in Santa Rosa, CA, US· patent location history
Inventor activity
Assignee and location history derived from the patent record.
Assignees
| Assignee | Patents | Span |
|---|---|---|
| PPG INDUSTRIES INC | 6 | 1986–1991 |
| AMERICAN STANDARD INC | 5 | 1981–1982 |
| WESTINGHOUSE AIR BRAKE CO | 3 | 1978–1982 |
| AGILENT TECHNOLOGIES INC | 1 | 2003 |
| DIELECTRIC SOLUTIONS LLC | 1 | 2003 |
Locations
| Location | Patents | Span |
|---|---|---|
| Allison Park, Pennsylvania, US | 8 | 1978–1982 |
| Gibsonia, Pennsylvania, US | 5 | 1988–1991 |
| Portersville, Pennsylvania, US | 1 | 2003 |
| Santa Rosa, California, US | 1 | 2003 |
| Pittsburgh, Pennsylvania, US | 1 | 1986 |