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Inventor

Keith H. Johnson

Inventor
Cambridge, MA, US

Overview

16→
Patents
1991–2021
Patent span
General tagging of new technological developments
Primary field (CPC Y)

Patents· 16 as inventor

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

F02Bprimary
F02BInternal-combustion piston engines12%
Y02TClimate change mitigation technologies related to transportation12%
C10LFuels not otherwise provided for10%
G21BFusion reactors10%
Y02EReduction of greenhouse gas [ghg] emissions, related to energy generation, transmission or distribution10%
Y10TTechnical subjects covered by former us classification8%
H04NPictorial communication, e.g. television4%
A46BBrushes2%
A47LDomestic washing or cleaning2%
A61BDiagnosis2%
PatentTitleYear
11,032,492Visible light and IR combined image camera202111,022,546Optical gas imaging systems and methods202110,100,527Hollow baluster installation system201810,005,163Dust collection system20188,285,351'High-Tc superconductivity of electron-doped water-cluster clathrates'20126,235,067'Combustion of nanopartitioned fuel'20016,010,544'Supercritical water fuel composition and combustion system'20005,997,590'Stabilized water nanocluster-fuel emulsions designed through quantum chemistry'19995,992,354'Combustion of nanopartitioned fuel'19995,800,576'Water clusters and uses therefor'19985,770,036'Method of maximizing anharmonic oscillations in deuterated alloys'19985,674,632'Method of maximizing anharmonic oscillations in deuterated alloys'19975,411,654'Method of maximizing anharmonic oscillations in deuterated alloys'1995D0351764'Condiment shaker'19945,110,231'Fluid spray cleaning system'19925,025,809'Recording, digital stethoscope for identifying PCG signatures'1991

Career & activity timeline

Assembled from patent assignee/location history and declaration credentials.

1992–1994Based in Laguna Nigel, CA, US· patent location history
1994Patents assigned to BURNS PHILP FOOD INC (1)· patent assignee history
1995–2001Patents assigned to MASSACHUSETTS INST TECHNOLOGY (5)· patent assignee history
1995–2012Based in Cambridge, MA, US· patent location history
1998–1999Patents assigned to QUANTUM ENERGY TECHNOLOGIES CO (2)· patent assignee history
2012–2018Patents assigned to JOHNSON KEITH (2)· patent assignee history
2018Based in Plano, TX, US· patent location history
2018Based in Brooklyn Center, MN, US· patent location history
2021Patents assigned to FLUKE CORP (2)· patent assignee history
2021Based in Rogers, MN, US· patent location history

Inventor activity

Assignee and location history derived from the patent record.

Assignees
AssigneePatentsSpan
MASSACHUSETTS INST TECHNOLOGY51995–2001
FLUKE CORP22021
JOHNSON KEITHself22012–2018
QUANTUM ENERGY TECHNOLOGIES CO21998–1999
BURNS PHILP FOOD INC11994
Locations
LocationPatentsSpan
Cambridge, Massachusetts, US91995–2012
Rogers, Minnesota, US22021
Laguna Nigel, California, US21992–1994
Plano, Texas, US12018
Brooklyn Center, Minnesota, US12018