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Inventor

Joseph Puntar

Inventor
Los Angeles, CA, US

Overview

2→
Patents
1981–1984
Patent span
Fixed constructions
Primary field (CPC E)

Patents· 2 as inventor

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

E21Bprimary
E21BEarth or rock drilling67%
Y10TTechnical subjects covered by former us classification33%
PatentTitleYear
4,478,279'Retrievable inside blowout preventer valve apparatus'19844,294,314'Inside blowout preventer well tool'1981

Career & activity timeline

Assembled from patent assignee/location history and declaration credentials.

1981–1984Patents assigned to HYDRIL CO (2)· patent assignee history
1981–1984Based in Los Angeles, CA, US· patent location history

Inventor activity

Assignee and location history derived from the patent record.

Assignees
AssigneePatentsSpan
HYDRIL CO21981–1984
Locations
LocationPatentsSpan
Los Angeles, California, US21981–1984