Inventor

Leonard Dutram, Jr.

Inventor

Trappe, PA, US

Overview

1981

Patent span

Mechanical engineering

Primary field (CPC F)

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

F02Gprimary

F02GHot gas or combustion-product positive-displacement engine plants50%

F04BPositive-displacement machines for liquids50%

PatentTitleYear

Assembled from patent assignee/location history and declaration credentials.

1981Patents assigned to US ENERGY (1)· patent assignee history

1981Based in Trappe, PA, US· patent location history

Assignee and location history derived from the patent record.

Assignees

Assignee	Patents	Span
US ENERGY	1	1981

Locations

Location	Patents	Span
Trappe, Pennsylvania, US	1	1981