Inventor

Donald J. Hancock

Inventor
Thousand Oaks, CA, US

Overview

8→
Patents
1987–2009
Patent span
Electricity
Primary field (CPC H)

Patents· 8 as inventor

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

H02Mprimary
H02MApparatus for conversion between ac and ac, between ac and dc, or between dc and dc, and for use with mains or similar power supply systems13%
Y02BClimate change mitigation technologies related to buildings, e.g. housing, house appliances or related end-user applications10%
Y10STechnical subjects covered by former uspc cross-reference art collections [xracs] and digests10%
B01DSeparation7%
B03CMagnetic or electrostatic separation of solid materials from solid materials or fluids7%
F03HProducing a reactive propulsive thrust, not otherwise provided for7%
H01TSpark gaps7%
A61NElectrotherapy3%
F01KSteam engine plants3%
F01NGas-flow silencers or exhaust apparatus for machines or engines in general3%

Career & activity timeline

Assembled from patent assignee/location history and declaration credentials.

1987–1990Patents assigned to HUGHES AIRCRAFT CO (5)· patent assignee history
1987–2009Based in Thousand Oaks, CA, US· patent location history
1998–1999Patents assigned to RAYTHEON CO (2)· patent assignee history
2009Patents assigned to MANN ALFRED E FOUND SCIENT RES (1)· patent assignee history

Inventor activity

Assignee and location history derived from the patent record.

Assignees
AssigneePatentsSpan
HUGHES AIRCRAFT CO51987–1990
RAYTHEON CO21998–1999
MANN ALFRED E FOUND SCIENT RES12009
Locations
LocationPatentsSpan
Thousand Oaks, California, US81987–2009