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Inventor

Robert J. Douwens

Inventor
Victoria, CA

Overview

3→
Patents
1982–1992
Patent span
Human necessities
Primary field (CPC A)

Patents· 3 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 body100%
PatentTitleYear
5,148,801'Electronic heater-humidifier for hypothermia treatment'19924,829,997'Portable heat exchanger for inhalation rewarming'19894,319,566'Method and apparatus for inhalation rewarming'1982

Career & activity timeline

Assembled from patent assignee/location history and declaration credentials.

1982Patents assigned to DOUWENS ROBERT (1)· patent assignee history
1982Patents assigned to HAYWARD JOHN (1)· patent assignee history
1982–1989Based in Victoria, CA· patent location history
1989–1992Patents assigned to UNIV VICTORIA (2)· patent assignee history
1992Based in Quathiaski Cove, CA· patent location history

Inventor activity

Assignee and location history derived from the patent record.

Assignees
AssigneePatentsSpan
UNIV VICTORIA21989–1992
DOUWENS ROBERTself11982
HAYWARD JOHN11982
Locations
LocationPatentsSpan
Victoria, CA21982–1989
Quathiaski Cove, CA11992