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Inventor

Verne Helm

Inventor
Santa Clara, CA, US

Overview

2→
Patents
1983–1989
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 body50%
B01DSeparation50%
PatentTitleYear
4,838,862'Portable controlled release osmotic infusion device'19894,415,608'Continuous production of polymethylpentene membranes'1983

Career & activity timeline

Assembled from patent assignee/location history and declaration credentials.

1983Patents assigned to UOP INC (1)· patent assignee history
1983Based in Plains, MT, US· patent location history
1989Patents assigned to PHARMETRIX CORP (1)· patent assignee history
1989Based in Santa Clara, CA, US· patent location history

Inventor activity

Assignee and location history derived from the patent record.

Assignees
AssigneePatentsSpan
PHARMETRIX CORP11989
UOP INC11983
Locations
LocationPatentsSpan
Santa Clara, California, US11989
Plains, MT, US11983