Leifeld GmbH & Co.
Patent Owner
Stats
- 0 US PATENTS IN FORCE
- 0 US APPLICATIONS PENDING
- Feb 17, 1998 most recent publication
Details
- 0 Issued Patents
- 0 Issued in last 3 years
- 0 Published in last 3 years
- 41 Total Citation Count
- May 16, 1990 Earliest Filing
- 9 Expired/Abandoned/Withdrawn Patents
Patent Activity in the Last 10 Years
Technologies
- No Technology to Display
Top Patents (by citation)
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Recent Publications
- No Recent Publications to Display
Recent Patents
- No Recent Patents to Display
Expired/Abandoned/Withdrawn Patents
Patent #
Title
Status
Filing Date
Issue/Pub Date
Intl Class
5718140 Method for manufacturing a rotationally symmetrical work-piece of steelExpiredAug 26, 96Feb 17, 98[B21D, B21B]
5133204 Apparatus for producing sunken shapes on the outer circumference of rotationally symmetrical sheet-metal workpieces and a method for producing the sameExpiredJun 18, 91Jul 28, 92[B21H]
5113584 Process for manufacturing an asymmetric pulley from a metal diskExpiredFeb 04, 91May 19, 92[B21K]
5107579 Process of forming a folded seam connection between two cup-shaped workpiecesExpiredOct 25, 90Apr 28, 92[B21D]
Top Inventors for This Owner
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