Inventor

Helmut Sch/a/ fer

Inventor

H/u/ rth, DE

Overview

1→

Patents

1984

Patent span

Performing operations

Primary field (CPC B)

Patents· 1 as inventor

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

B32Bprimary

B32BLayered products, i.e. products built-up of strata of flat or non-flat, e.g. cellular or honeycomb, form20%

B65DContainers for storage or transport of articles or materials, e.g. bags, barrels, bottles, boxes, cans, cartons, crates, drums, jars, tanks, hoppers, forwarding containers20%

C08JWorking-up20%

Y10STechnical subjects covered by former uspc cross-reference art collections [xracs] and digests20%

Y10TTechnical subjects covered by former us classification20%

PatentTitleYear

4,479,996'Forgery-resistant film and method of using same'1984

Career & activity timeline

Assembled from patent assignee/location history and declaration credentials.

1984Patents assigned to HOECHST AG (1)· patent assignee history

1984Based in H/u/ rth, DE· patent location history

Inventor activity

Assignee and location history derived from the patent record.

Assignees

Assignee	Patents	Span
HOECHST AG	1	1984

Locations

Location	Patents	Span
H/u/ rth, DE	1	1984