Inventor

Darral V. Humphries

Inventor

Allentown, PA, US

Overview

8→

Patents

1978–1991

Patent span

Performing operations

Primary field (CPC B)

Patents· 8 as inventor

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

B29Cprimary

B29CShaping or joining of plastics27%

F16LPipes15%

Y10STechnical subjects covered by former uspc cross-reference art collections [xracs] and digests15%

B29KIndexing scheme associated with subclasses b29b, b29c or b29d, relating to moulding materials or to materials for moulds, reinforcements, fillers or preformed parts, e.g. inserts12%

C08JWorking-up12%

Y10TTechnical subjects covered by former us classification12%

D07BRopes or cables in general4%

Y02PClimate change mitigation technologies in the production or processing of goods4%

PatentTitleYear

5,053,180'Process for deformation of amorphous polymers'1991 4,956,140'Methods of and apparatus for producing biaxially oriented polymer product'1990 4,874,657'Methods of producing biaxially-oriented polymer product, and the product produced thereby'1989 4,449,904'Apparatus for the hydrostatic extrusion of thermoplastic polymers'1984 4,363,611'Apparatus for hydrostatic extrusion of thermoplastic polymers'1982 4,341,827'Biaxially oriented thermoplastic polymer film and method of manufacture'1982 4,282,277'Oriented, semi-crystalline polymer product and method and apparatus for producing such product'1981 4,123,894'Sealed wire rope'1978

Career & activity timeline

Assembled from patent assignee/location history and declaration credentials.

1978–1984Patents assigned to BETHLEHEM STEEL CORP (5)· patent assignee history

1978–1990Based in Allentown, PA, US· patent location history

1989Patents assigned to KUSAN INC (1)· patent assignee history

1990Patents assigned to ALUMINUM CO AMERICA ALCOA CT (1)· patent assignee history

1991Patents assigned to ALUMINUM CO OF AMERICA (1)· patent assignee history

1991Based in Macungie, PA, US· patent location history

Inventor activity

Assignee and location history derived from the patent record.

Assignees

Assignee	Patents	Span
BETHLEHEM STEEL CORP	5	1978–1984
ALUMINUM CO AMERICA ALCOA CT	1	1990
ALUMINUM CO OF AMERICA	1	1991
KUSAN INC	1	1989

Locations

Location	Patents	Span
Allentown, Pennsylvania, US	7	1978–1990
Macungie, Pennsylvania, US	1	1991