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Inventor

Alan Donaldson

Inventor
Albuquerque, NM, US

Overview

16→
Patents
1983–2020
Patent span
Mechanical engineering
Primary field (CPC F)

Patents· 16 as inventor

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

E21Bprimary
E21BEarth or rock drilling20%
G02BOptical elements, systems or apparatus17%
F22BMethods of steam generation10%
A61FFilters implantable into blood vessels7%
F23DBurners7%
F01PCooling of machines or engines in general3%
F02DControlling combustion engines3%
F02MSupplying combustion engines in general with combustible mixtures or constituents thereof3%
F22DPreheating, or accumulating preheated, feed-water for steam generation3%
F22GSuperheating of steam3%
PatentTitleYear
10,641,481Systems and methods for generating superheated steam with variable flue gas for enhanced oil recovery20209,752,422'Direct electrical steam generation for downhole heavy oil stimulation'20178,491,512'Adjustable cervical collar'2013D0659842'Cervical collar'20127,103,257'Hermetically sealed fiber tail assembly for polarization maintaining fiber'20066,848,419'Wetstacking avoidance in internal combustion engines'20056,795,620'Fiber tail assembly with optical signal tap'20046,771,910'Optical bit interleaving'20046,301,407'Dielectric optical filter network'20016,045,523'Cervical collar'20005,664,043'Hermetic optical fibre feed-through'19975,570,444'Method of optically coupling optical fibres to injection lasers'19964,648,835'Steam generator having a high pressure combustor with controlled thermal and mechanical stresses and utilizing pyrophoric ignition'19874,498,542'Direct contact low emission steam generating system and method utilizing a compact, multi-fuel burner'19854,411,618'Downhole steam generator with improved preheating/cooling features'19834,366,860'Downhole steam injector'1983

Career & activity timeline

Assembled from patent assignee/location history and declaration credentials.

1983–2017Patents assigned to DONALDSON A BURL (2)· patent assignee history
1983–2020Based in Albuquerque, NM, US· patent location history
1985–1987Patents assigned to ENHANCED ENERGY SYSTEMS (2)· patent assignee history
1996Based in Devon, GB· patent location history
1997–2001Based in Paignton, GB· patent location history
2000–2013Based in Lewisville, NC, US· patent location history
2004–2006Patents assigned to CODEON CORP (2)· patent assignee history
2004–2006Based in Clarksville, MD, US· patent location history
2012–2013Patents assigned to CLEAR ADVANTAGE COLLAR INC (2)· patent assignee history
2012–2013Patents assigned to DONALDSON ALAN (2)· patent assignee history

Inventor activity

Assignee and location history derived from the patent record.

Assignees
AssigneePatentsSpan
CLEAR ADVANTAGE COLLAR INC22012–2013
CODEON CORP22004–2006
DONALDSON A BURLself21983–2017
DONALDSON ALANself22012–2013
ENHANCED ENERGY SYSTEMS21985–1987
Locations
LocationPatentsSpan
Albuquerque, NM, US71983–2020
Lewisville, NC, US32000–2013
Clarksville, Maryland, US32004–2006
Paignton, GB21997–2001
Devon, GB11996