Inventor

Ernst Ricker

Inventor

Bretzfeld-Geddelsbach, DE

Overview

1987–1991

Patent span

General tagging of new technological developments

Primary field (CPC Y)

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

G11Bprimary

G11BInformation storage based on relative movement between record carrier and transducer33%

Y10STechnical subjects covered by former uspc cross-reference art collections [xracs] and digests33%

Y10TTechnical subjects covered by former us classification33%

PatentTitleYear

Assembled from patent assignee/location history and declaration credentials.

1987–1991Patents assigned to BASF AG (2)· patent assignee history

1987Based in Willstaett, DE· patent location history

1991Based in Bretzfeld-Geddelsbach, DE· patent location history

Assignee and location history derived from the patent record.

Assignees

Assignee	Patents	Span
BASF AG	2	1987–1991

Locations

Location	Patents	Span
Bretzfeld-Geddelsbach, DE	1	1991
Willstaett, DE	1	1987