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Inventor

Gerd Willmann

Inventor
Leinfelden-Echterdingen, DE

Overview

3→
Patents
1987–2002
Patent span
Human necessities
Primary field (CPC A)

Patents· 3 as inventor

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

A61Fprimary
A61FFilters implantable into blood vessels22%
C04BLime, magnesia22%
Y10STechnical subjects covered by former uspc cross-reference art collections [xracs] and digests22%
A61LMethods or apparatus for sterilising materials or objects in general11%
B32BLayered products, i.e. products built-up of strata of flat or non-flat, e.g. cellular or honeycomb, form11%
G01NInvestigating or analysing materials by determining their chemical or physical properties11%
PatentTitleYear
6,387,132'Artificial joint of a prosthesis'20026,176,140'Method of testing ceramic cotyloid cavities for hip joint endoprostheses'20014,710,480'Method of ceramic molding which produces a porosity gradient and the manufacture of compound moldings using this method'1987

Career & activity timeline

Assembled from patent assignee/location history and declaration credentials.

1987Patents assigned to DIDIER WERKE AG (1)· patent assignee history
1987Based in Neidernhausen, DE· patent location history
2001Patents assigned to CERASIV GMBH (1)· patent assignee history
2001–2002Based in Leinfelden-Echterdingen, DE· patent location history
2002Patents assigned to CERAMTEC AG (1)· patent assignee history

Inventor activity

Assignee and location history derived from the patent record.

Assignees
AssigneePatentsSpan
CERAMTEC AG12002
CERASIV GMBH12001
DIDIER WERKE AG11987
Locations
LocationPatentsSpan
Leinfelden-Echterdingen, DE22001–2002
Neidernhausen, DE11987