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Inventor

Donald Burch

Inventor
Los Altos, CA, US

Overview

9→
Patents
1985–2013
Patent span
Electricity
Primary field (CPC H)

Patents· 9 as inventor

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

H02Kprimary
H02KDynamo-electric machines31%
A47CChairs19%
B29CShaping or joining of plastics19%
Y10STechnical subjects covered by former uspc cross-reference art collections [xracs] and digests19%
F16KValves6%
H01FMagnets6%
PatentTitleYear
8,471,425'Rotor-stator structures including boost magnet structures for magnetic regions having angled confronting surfaces in rotor assemblies'20138,330,317'Conical magnets and rotor-stator structures for electrodynamic machines'20128,330,316'Rotor-stator structures including boost magnet structures for magnetic regions in rotor assemblies disposed external to boundaries of conically-shaped spaces'20128,072,115'Foil coil structures and methods for winding the same for axial-based electrodynamic machines'20117,982,350'Conical magnets and rotor-stator structures for electrodynamic machines'20117,004,446'Bistable dual-magnet valve unit'20064,853,995'Molded cushion article'19894,542,887'Process for molding cushion articles'19854,501,541'Mold assembly for molding cushion articles'1985

Career & activity timeline

Assembled from patent assignee/location history and declaration credentials.

1985–1989Patents assigned to SEARS MFG CO (3)· patent assignee history
1985–1989Based in Coralville, IA, US· patent location history
2006–2013Patents assigned to BURCH DONALD (5)· patent assignee history
2006–2013Patents assigned to PETRO JOHN P (3)· patent assignee history
2006–2013Based in Los Altos, CA, US· patent location history
2011–2013Patents assigned to NOVATORQUE INC (5)· patent assignee history
2012–2013Patents assigned to MAYER JEREMY (2)· patent assignee history

Inventor activity

Assignee and location history derived from the patent record.

Assignees
AssigneePatentsSpan
BURCH DONALDself52006–2013
NOVATORQUE INC52011–2013
PETRO JOHN P32006–2013
SEARS MFG CO31985–1989
MAYER JEREMY22012–2013
Locations
LocationPatentsSpan
Los Altos, California, US62006–2013
Coralville, IA, US31985–1989