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Inventor

Melvin George Johnson

Inventor
Peterborough, CA

Overview

5→
Patents
2001–2021
Patent span
Electricity
Primary field (CPC H)

Patents· 5 as inventor

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

H01Rprimary
H01RElectrically-conductive connections33%
H02KDynamo-electric machines33%
H01FMagnets17%
A61BDiagnosis8%
H02JElectric power networks8%
PatentTitleYear
10,898,239Spinal trauma correction and fixation20216,495,940'Slip ring brush assembly and method'20026,472,791'Envelope for slip-ring contacting members in high-power rotary current collector system'20026,465,926'Cleaning/cooling of high-power rotary current collector system'20026,281,610'Slip ring brush assembly and method'2001

Career & activity timeline

Assembled from patent assignee/location history and declaration credentials.

2001–2002Patents assigned to GEN ELECTRIC (3)· patent assignee history
2001–2002Based in Peterborough, CA· patent location history
2002Patents assigned to GEN ELECTRIC COPMAY (1)· patent assignee history
2021Patents assigned to NUVASIVE INC (1)· patent assignee history
2021Based in Atlanta, GA, US· patent location history

Inventor activity

Assignee and location history derived from the patent record.

Assignees
AssigneePatentsSpan
GEN ELECTRIC32001–2002
GEN ELECTRIC COPMAY12002
NUVASIVE INC12021
Locations
LocationPatentsSpan
Peterborough, CA42001–2002
Atlanta, Georgia, US12021