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Inventor

Douglas L. Sheadel

Inventor
Westford, MA, US

Overview

2→
Patents
2000–2002
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 fencing100%
PatentTitleYear
6,419,611'Exercise device'20026,045,489'Exercise device'2000

Career & activity timeline

Assembled from patent assignee/location history and declaration credentials.

2000Patents assigned to POWERSOURCE LLC (1)· patent assignee history
2000–2002Based in Westford, MA, US· patent location history
2002Patents assigned to FITNESSLAB LLC (1)· patent assignee history

Inventor activity

Assignee and location history derived from the patent record.

Assignees
AssigneePatentsSpan
FITNESSLAB LLC12002
POWERSOURCE LLC12000
Locations
LocationPatentsSpan
Westford, Massachusetts, US22000–2002