Inventor

Randolph E. Crutchfield

Inventor

Scottsdale, AZ, US

Overview

1994–2021

Patent span

Human necessities

Primary field (CPC A)

Patents· 20 as inventor

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

A61Nprimary

A61NElectrotherapy61%

G06FElectric digital data processing4%

G11BInformation storage based on relative movement between record carrier and transducer4%

H01LSemiconductor devices4%

H01MProcesses or means, e.g. batteries, for the direct conversion of chemical energy into electrical energy4%

H01RElectrically-conductive connections4%

H02JElectric power networks4%

H05KPrinted circuits4%

H10PGeneric processes or apparatus for the manufacture or treatment of devices covered by class h104%

H10WGeneric packages, interconnections, connectors or other constructional details of devices covered by class h104%

PatentTitleYear

11,031,345Integrated circuit package and method of forming same2021 10,737,090External defibrillation electrode conductive electrolyte dispersal pad2020 10,625,087Therapy delivery methods and circuits for an implantable medical device2020 10,159,847Implantable medical devices with active component monitoring2018 9,956,422Therapy delivery methods and circuits for an implantable medical device2018 9,861,827'Implantable medical devices having multi-cell power sources'2018 9,750,950'Implantable medical device having isolated multi-cell power sources'2017 9,724,528'Multiple transformer charging circuits for implantable medical devices'2017 9,643,025'Multi-primary transformer charging circuits for implantable medical devices'2017 9,604,071'Implantable medical devices having multi-cell power sources'2017 9,579,517'Transformer-based charging circuits for implantable medical devices'2017 9,539,435'Transthoracic protection circuit for implantable medical devices'2017 9,526,910'Therapy delivery method and system for implantable medical devices'2016 9,168,379'Therapy delivery method and system for implantable medical devices'2015 9,061,163'Fault tolerant system for an implantable cardioverter defibrillator or pulse generator'2015 8,886,314'Therapy delivery method and system for implantable medical devices'2014 8,532,785'Therapy delivery method and system for implantable medical devices'2013 8,380,329'Controlling a digital audio player from a cassette tape player adapter'2013 6,964,576'Enabling components to be removed without hot swap circuitry'2005 5,357,061'Digitizer tablet having high permeability grid shield'1994

Career & activity timeline

Assembled from patent assignee/location history and declaration credentials.

1994Patents assigned to CALCOMP INC (1)· patent assignee history

1994–2021Based in Scottsdale, AZ, US· patent location history

2005–2013Patents assigned to INTEL CORP (2)· patent assignee history

2013–2021Patents assigned to MEDTRONIC INC (17)· patent assignee history

2013–2015Patents assigned to CRUTCHFIELD RANDOLPH E (2)· patent assignee history

2015Patents assigned to CABELKA LONNY V (1)· patent assignee history

Inventor activity

Assignee and location history derived from the patent record.

Assignees

Assignee	Patents	Span
MEDTRONIC INC	17	2013–2021
CRUTCHFIELD RANDOLPH Eself	2	2013–2015
INTEL CORP	2	2005–2013
CABELKA LONNY V	1	2015
CALCOMP INC	1	1994

Locations

Location	Patents	Span
Scottsdale, AZ, US	20	1994–2021