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Inventor

Harold F. Stewart

Inventor
Nashville, TN, US

Overview

3→
Patents
1979–1992
Patent span
Physics
Primary field (CPC G)

Patents· 3 as inventor

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

G01Hprimary
G01HMeasurement of mechanical vibrations or ultrasonic, sonic or infrasonic waves25%
G01MTesting static or dynamic balance of machines or structures25%
G09BEducational or demonstration appliances25%
G10KSound-producing devices25%
PatentTitleYear
5,138,871'Method and apparatus for testing the permeability of prophylactics'19925,052,934'Phantom for evaluation of prosthetic valves and cardiac ultrasound procedures'19914,133,212'Parabolic focussing thermal detector for low level ultrasonic power measurements'1979

Career & activity timeline

Assembled from patent assignee/location history and declaration credentials.

1979–1992Patents assigned to US HEALTH (3)· patent assignee history
1979Based in Rockville, MD, US· patent location history
1991–1992Based in Nashville, TN, US· patent location history

Inventor activity

Assignee and location history derived from the patent record.

Assignees
AssigneePatentsSpan
US HEALTH31979–1992
Locations
LocationPatentsSpan
Nashville, TN, US21991–1992
Rockville, Maryland, US11979