Inventor

Roy N. Krohn

Inventor

Wrightsville, PA, US

Overview

14→

Patents

1988–2009

Patent span

Performing operations

Primary field (CPC B)

Patents· 14 as inventor

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

B29Cprimary

B29CShaping or joining of plastics46%

B29LIndexing scheme associated with subclass b29c, relating to particular articles23%

B65DContainers for storage or transport of articles or materials, e.g. bags, barrels, bottles, boxes, cans, cartons, crates, drums, jars, tanks, hoppers, forwarding containers15%

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%

Y10TTechnical subjects covered by former us classification4%

PatentTitleYear

7,485,253'In-mold finished neck on a continuous extrusion blow molder'2009 7,464,826'Hot-fill container base structure'2008 7,316,796'Center cylinder ejection assist'2008 7,037,101'Center cylinder ejection assist'2006 7,036,692'Dispenser with an integrally molded neck finish'2006 7,000,793'Hot-fill container base structure'2006 6,957,953'Reservoir reducing screw tip'2005 6,739,858'Insulated apparatus for injecting and removing compressed air from a cooled mold cavity'2004 6,709,261'Multi-parison/dual cavity wheel blowmolds'2004 6,673,301'Extrusion blow-molded squeezable tube-shaped container and method for making same'2004 6,629,834'Apparatus for making a plastic container and closure combination'2003 6,555,033'Method and apparatus for making a plastic container and closure combination'2003 6,551,092'Parison separation assembly'2003 D0298917'Bottle'1988

Career & activity timeline

Assembled from patent assignee/location history and declaration credentials.

1988Patents assigned to SONOCO PRODUCTS CO (1)· patent assignee history

1988–2004Based in York, PA, US· patent location history

2003–2009Patents assigned to GRAHAM PACKAGING CO (10)· patent assignee history

2003Patents assigned to GRAHAM PACKAGING CO LP (1)· patent assignee history

2005–2009Based in Wrightsville, PA, US· patent location history

2006Patents assigned to GRAHAM PACKAGING CO L P (1)· patent assignee history

2006Patents assigned to GRAHAM PACKING COMPANY L P (1)· patent assignee history

Inventor activity

Assignee and location history derived from the patent record.

Assignees

Assignee	Patents	Span
GRAHAM PACKAGING CO	10	2003–2009
GRAHAM PACKAGING CO L P	1	2006
GRAHAM PACKAGING CO LP	1	2003
GRAHAM PACKING COMPANY L P	1	2006
SONOCO PRODUCTS CO	1	1988

Locations

Location	Patents	Span
Wrightsville, Pennsylvania, US	7	2005–2009
York, Pennsylvania, US	7	1988–2004