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Inventor

Herbert J. Hoekstra

Inventor
Ridgeville, OH, US

Overview

2→
Patents
1989–1991
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.

A61Gprimary
A61GTransport, personal conveyances, or accommodation specially adapted for patients or disabled persons50%
Y10STechnical subjects covered by former uspc cross-reference art collections [xracs] and digests50%
PatentTitleYear
4,989,890'Length and width adjustable wheelchair'19914,813,693'Adjustable child\'s wheelchair'1989

Career & activity timeline

Assembled from patent assignee/location history and declaration credentials.

1989–1991Patents assigned to INVACARE CORP (2)· patent assignee history
1989–1991Based in Ridgeville, OH, US· patent location history

Inventor activity

Assignee and location history derived from the patent record.

Assignees
AssigneePatentsSpan
INVACARE CORP21989–1991
Locations
LocationPatentsSpan
Ridgeville, OH, US21989–1991