Inventor

Michael W. Biddulph

Inventor

University Park, GB

Overview

2→

Patents

1992–1993

Patent span

Performing operations

Primary field (CPC B)

Patents· 2 as inventor

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

B01Dprimary

B01DSeparation50%

F25JLiquefaction, solidification or separation of gases or gaseous or liquefied gaseous mixtures by pressure and cold treatment or by bringing them into the supercritical state25%

F28FDetails of heat-exchange and heat-transfer apparatus, of general application25%

PatentTitleYear

5,269,976'Liquid-vapour contact columns'1993 5,091,119'Liquid-gas contact device'1992

Career & activity timeline

Assembled from patent assignee/location history and declaration credentials.

1992–1993Patents assigned to BOC GROUP PLC (2)· patent assignee history

1992–1993Based in University Park, GB· patent location history

Inventor activity

Assignee and location history derived from the patent record.

Assignees

Assignee	Patents	Span
BOC GROUP PLC	2	1992–1993

Locations

Location	Patents	Span
University Park, GB	2	1992–1993