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Inventor

David T. Helsten

Inventor
Los Angeles, CA, US

Overview

1→
Patents
1989
Patent span

Patents· 1 as inventor

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

PatentTitleYear
D0304553'Watch face'1989

Career & activity timeline

Assembled from patent assignee/location history and declaration credentials.

1989Patents assigned to HELSTEN DAVID T (1)· patent assignee history
1989Patents assigned to INTERDONATO GIOVANNI (1)· patent assignee history
1989Based in Los Angeles, CA, US· patent location history

Inventor activity

Assignee and location history derived from the patent record.

Assignees
AssigneePatentsSpan
HELSTEN DAVID Tself11989
INTERDONATO GIOVANNI11989
Locations
LocationPatentsSpan
Los Angeles, California, US11989