Inventor

Roger A. Ziecker

Inventor

Lawrenceville, GA, US

Overview

12→

Patents

1980–2000

Patent span

Performing operations

Primary field (CPC B)

Patents· 12 as inventor

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

B05Cprimary

B05CApparatus for applying fluent materials to surfaces, in general30%

B05BSpraying apparatus27%

D01DMechanical methods or apparatus in the manufacture of artificial filaments, threads, fibres, bristles or ribbons7%

Y10STechnical subjects covered by former uspc cross-reference art collections [xracs] and digests7%

Y10TTechnical subjects covered by former us classification7%

A61FFilters implantable into blood vessels3%

B29BPreparation or pretreatment of the material to be shaped3%

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. inserts3%

B65BMachines, apparatus or devices for, or methods of, packaging articles or materials3%

B65GTransport or storage devices, e.g. conveyors for loading or tipping, shop conveyor systems or pneumatic tube conveyors3%

PatentTitleYear

6,089,413'Liquid dispensing and recirculating module'2000 5,740,963'Self-sealing slot nozzle die'1998 5,699,938'Molten thermoplastic material supply system with removable drive assembly'1997 5,620,139'Nozzle adapter with recirculation valve'1997 5,495,963'Valve for controlling pressure and flow'1996 5,292,068'One-piece, zero cavity nozzle for swirl spray of adhesive'1994 5,265,800'Adhesive spray gun with adjustable module and method of assembling'1993 4,983,109'Spray head attachment for metering gear head'1991 RE033481'Adhesive spray gun and nozzle attachment'1990 4,785,996'Adhesive spray gun and nozzle attachment'1988 4,301,912'Divider screws'1981 4,223,509'Film tucking packaging machine'1980

Career & activity timeline

Assembled from patent assignee/location history and declaration credentials.

1980–1981Patents assigned to MEAD CORP (2)· patent assignee history

1980–2000Based in Lawrenceville, GA, US· patent location history

1988–2000Patents assigned to NORDSON CORP (10)· patent assignee history

Inventor activity

Assignee and location history derived from the patent record.

Assignees

Assignee	Patents	Span
NORDSON CORP	10	1988–2000
MEAD CORP	2	1980–1981

Locations

Location	Patents	Span
Lawrenceville, Georgia, US	12	1980–2000