Inventor

David W. Underwood

Inventor
Tampa, FL, US

Overview

2→
Patents
1977–2019
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.

A61Mprimary
A61MDevices for introducing media into, or onto, the body33%
G04FTime-interval measuring33%
Y10TTechnical subjects covered by former us classification33%

Career & activity timeline

Assembled from patent assignee/location history and declaration credentials.

1977Patents assigned to MALLORY & CO INC P R (1)· patent assignee history
1977Based in Clayton, IN, US· patent location history
2019Patents assigned to BIODERM INC (1)· patent assignee history
2019Based in Tampa, FL, US· patent location history

Inventor activity

Assignee and location history derived from the patent record.

Assignees
AssigneePatentsSpan
BIODERM INC12019
MALLORY & CO INC P R11977
Locations
LocationPatentsSpan
Tampa, Florida, US12019
Clayton, IN, US11977