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Inventor

Brian W. Maassen

Inventor
Santa Rosa, CA, US

Overview

1→
Patents
1989
Patent span
Fixed constructions
Primary field (CPC E)

Patents· 1 as inventor

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

E21Bprimary
E21BEarth or rock drilling33%
F03GSpring, weight, inertia or like motors33%
Y10STechnical subjects covered by former uspc cross-reference art collections [xracs] and digests33%
PatentTitleYear
4,844,162'Apparatus and method for treating geothermal steam which contains hydrogen sulfide'1989

Career & activity timeline

Assembled from patent assignee/location history and declaration credentials.

1989Patents assigned to UNION OIL CO (1)· patent assignee history
1989Based in Santa Rosa, CA, US· patent location history

Inventor activity

Assignee and location history derived from the patent record.

Assignees
AssigneePatentsSpan
UNION OIL CO11989
Locations
LocationPatentsSpan
Santa Rosa, California, US11989