Inventor

John R. Mastandrea

Inventor

Redondo Beach, CA, US

Overview

1976–1994

Patent span

Physics

Primary field (CPC G)

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

G01Mprimary

G01MTesting static or dynamic balance of machines or structures30%

F41JTargets10%

F42BExplosive charges, e.g. for blasting, fireworks, ammunition10%

G01FMeasuring volume, volume flow, mass flow or liquid level10%

G01LMeasuring force, stress, torque, work, mechanical power, mechanical efficiency, or fluid pressure10%

G01NInvestigating or analysing materials by determining their chemical or physical properties10%

Y10STechnical subjects covered by former uspc cross-reference art collections [xracs] and digests10%

Y10TTechnical subjects covered by former us classification10%

PatentTitleYear

Assembled from patent assignee/location history and declaration credentials.

1976Patents assigned to MC DONNELL DOUGLAS CORP (1)· patent assignee history

1976Based in Los Angeles, CA, US· patent location history

1978Patents assigned to MASTANDREA JOHN R (1)· patent assignee history

1978–1989Based in Rancho Palos Verdes, CA, US· patent location history

1989Patents assigned to NDE TECHNOLOGY INC (1)· patent assignee history

1992–1994Patents assigned to NDE ENVIRONMENTAL CORP (2)· patent assignee history

1992–1994Based in Redondo Beach, CA, US· patent location history

Assignee and location history derived from the patent record.

Assignees

Locations

Location	Patents	Span
Redondo Beach, California, US	2	1992–1994
Rancho Palos Verdes, California, US	2	1978–1989
Los Angeles, California, US	1	1976