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Inventor

John Lawrence Keen

Inventor
Nanaimo, CA

Overview

1→
Patents
2018
Patent span
Mechanical engineering
Primary field (CPC F)

Patents· 1 as inventor

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

F16Kprimary
F16KValves100%
PatentTitleYear
9,964,218Line blind valve2018

Career & activity timeline

Assembled from patent assignee/location history and declaration credentials.

2018Patents assigned to EVERGREEN MECH DESIGN LTD (1)· patent assignee history
2018Patents assigned to HALLIDAY KYLE (1)· patent assignee history
2018Patents assigned to KEEN JOHN LAWRENCE (1)· patent assignee history
2018Patents assigned to PRONTACK RYAN JOSEPH (1)· patent assignee history
2018Based in Nanaimo, CA· patent location history

Inventor activity

Assignee and location history derived from the patent record.

Assignees
AssigneePatentsSpan
EVERGREEN MECH DESIGN LTD12018
HALLIDAY KYLE12018
KEEN JOHN LAWRENCEself12018
PRONTACK RYAN JOSEPH12018
Locations
LocationPatentsSpan
Nanaimo, CA12018