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Inventor

Harold T. Johnson

Inventor
Ottawa, CA

Overview

2→
Patents
1976–2013
Patent span
Human necessities
Primary field (CPC A)

Patents· 2 as inventor

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

A63Bprimary
A63BApparatus for physical training, gymnastics, swimming, climbing, or fencing33%
G06FElectric digital data processing33%
H04LTransmission of digital information, e.g. telegraphic communication33%
PatentTitleYear
8,458,792'Secure method and system for computer protection'20133,944,231'Golf club'1976

Career & activity timeline

Assembled from patent assignee/location history and declaration credentials.

1976–2013Patents assigned to JOHNSON HAROLD T (2)· patent assignee history
1976Based in Kewanee, IL, US· patent location history
2013Patents assigned to CHOW STANLEY T (1)· patent assignee history
2013Patents assigned to GU YUAN XIANG (1)· patent assignee history
2013Patents assigned to IRDETO CANADA CORP (1)· patent assignee history
2013Patents assigned to MAIN ALEXANDER (1)· patent assignee history
2013Based in Ottawa, CA· patent location history

Inventor activity

Assignee and location history derived from the patent record.

Assignees
AssigneePatentsSpan
JOHNSON HAROLD Tself21976–2013
CHOW STANLEY T12013
GU YUAN XIANG12013
IRDETO CANADA CORP12013
MAIN ALEXANDER12013
Locations
LocationPatentsSpan
Ottawa, CA12013
Kewanee, Illinois, US11976