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Inventor

Lawrence J. Graf

Inventor
Snohomish, WA, US

Overview

7→
Patents
1992–2012
Patent span
Human necessities
Primary field (CPC A)

Patents· 7 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 fencing43%
B63BShips or other waterborne vessels29%
F16FSprings29%
PatentTitleYear
8,109,221'Single drive catamaran hull'20125,318,490'Exercise apparatus'19945,254,059'Exercise apparatus'19935,188,049'Catamaran boat'1993D0331562'Boat'1992D0328625'Climbing exerciser'19925,129,872'Exercise apparatus'1992

Career & activity timeline

Assembled from patent assignee/location history and declaration credentials.

1992–1994Patents assigned to PRECOR INC (4)· patent assignee history
1992–2012Patents assigned to GRAF LAWRENCE J (3)· patent assignee history
1992–2012Based in Snohomish, WA, US· patent location history
1992Based in Snohmish, WA, US· patent location history
2012Patents assigned to ASPEN POWER CATAMARANS LLC (1)· patent assignee history
2012Patents assigned to PUGH DAVID J (1)· patent assignee history

Inventor activity

Assignee and location history derived from the patent record.

Assignees
AssigneePatentsSpan
PRECOR INC41992–1994
GRAF LAWRENCE Jself31992–2012
ASPEN POWER CATAMARANS LLC12012
PUGH DAVID J12012
Locations
LocationPatentsSpan
Snohomish, Washington, US61992–2012
Snohmish, Washington, US11992