Inventor

David Thomas Ryan

Inventor
Niskayuna, NY, US

Overview

12→
Patents
2000–2021
Patent span
Electricity
Primary field (CPC H)

Patents· 12 as inventor

Public. Assignee & technology derived from the patent record. Each patent links to its LexDana page.

G01Rprimary
G01RMeasuring electric variables17%
Y02EReduction of greenhouse gas [ghg] emissions, related to energy generation, transmission or distribution13%
C23CCoating metallic material9%
H01FMagnets9%
H02HEmergency protective circuit arrangements9%
H04BTransmission9%
H10PGeneric processes or apparatus for the manufacture or treatment of devices covered by class h109%
Y10TTechnical subjects covered by former us classification9%
H02KDynamo-electric machines4%
H04JMultiplex communication4%

Career & activity timeline

Assembled from patent assignee/location history and declaration credentials.

2000Patents assigned to QUESTER TECHNOLOGY INC (2)· patent assignee history
2000Based in Concord, CA, US· patent location history
2004Patents assigned to OXFORD INSTR SUPERCONDUCTIVITY (1)· patent assignee history
2005–2011Patents assigned to GEN ELECTRIC (6)· patent assignee history
2005Patents assigned to GE MED SYS GLOBAL TECH CO LLC (1)· patent assignee history
2005–2011Based in Niskayuna, NY, US· patent location history
2008Based in Harogate, GB· patent location history
2021Patents assigned to SPECTRUM EFFECT INC (2)· patent assignee history
2021Based in Kirkland, WA, US· patent location history
2021Based in Jackson, WY, US· patent location history

Inventor activity

Assignee and location history derived from the patent record.

Assignees
AssigneePatentsSpan
GEN ELECTRIC62005–2011
QUESTER TECHNOLOGY INC22000
SPECTRUM EFFECT INC22021
GE MED SYS GLOBAL TECH CO LLC12005
OXFORD INSTR SUPERCONDUCTIVITY12004
Locations
LocationPatentsSpan
Niskayuna, New York, US62005–2011
Concord, California, US22000
Kirkland, Washington, US12021
Jackson, WY, US12021
Harogate, GB12008