Inventor

Manfred Unger

Inventor

Schlangenbad, DE

Overview

9→

Patents

1977–2001

Patent span

General tagging of new technological developments

Primary field (CPC Y)

Patents· 9 as inventor

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

Y10Sprimary

Y10STechnical subjects covered by former uspc cross-reference art collections [xracs] and digests16%

F01LCyclically operating valves for machines or engines12%

Y10TTechnical subjects covered by former us classification12%

B32BLayered products, i.e. products built-up of strata of flat or non-flat, e.g. cellular or honeycomb, form8%

B65DContainers for storage or transport of articles or materials, e.g. bags, barrels, bottles, boxes, cans, cartons, crates, drums, jars, tanks, hoppers, forwarding containers8%

C08JWorking-up8%

F04BPositive-displacement machines for liquids8%

B42DBooks4%

C07CAcyclic or carbocyclic compounds4%

C08GMacromolecular compounds obtained otherwise than by reactions only involving unsaturated carbon-to-carbon bonds4%

PatentTitleYear

6,328,537'Radial piston pump'2001 5,713,331'Injection and exhaust-brake system for an internal combustion engine having several cylinders'1998 5,697,336'Engine brake for a multi-cylinder internal combustion engine'1997 5,676,109'Hydraulic system, in particular an engine brake for an internal combustion engine'1997 4,560,426'Process for the manufacture of identity cards'1985 4,479,996'Forgery-resistant film and method of using same'1984 4,341,833'Forgery-resistant film'1982 4,139,518'Polyethylene terephthalate composition and shaped articles'1979 4,048,150'Leader of a carrier of information in the form of a web'1977

Career & activity timeline

Assembled from patent assignee/location history and declaration credentials.

1977–1985Patents assigned to HOECHST AG (5)· patent assignee history

1977–1985Based in Schlangenbad, DE· patent location history

1997–1998Patents assigned to REXROTH MANNESMANN GMBH (3)· patent assignee history

1997–2001Based in Kleinostheim, DE· patent location history

2001Patents assigned to HYDRAULIK RING GMBH (1)· patent assignee history

Inventor activity

Assignee and location history derived from the patent record.

Assignees

Assignee	Patents	Span
HOECHST AG	5	1977–1985
REXROTH MANNESMANN GMBH	3	1997–1998
HYDRAULIK RING GMBH	1	2001

Locations

Location	Patents	Span
Schlangenbad, DE	5	1977–1985
Kleinostheim, DE	4	1997–2001