Zumtobel Aktiengesellschaft
Patent Owner
Stats
- 3 US PATENTS IN FORCE
- 0 US APPLICATIONS PENDING
- Oct 04, 1994 most recent publication
Details
- 3 Issued Patents
- 0 Issued in last 3 years
- 0 Published in last 3 years
- 255 Total Citation Count
- Aug 15, 1978 Earliest Filing
- 7 Expired/Abandoned/Withdrawn Patents
Patent Activity in the Last 10 Years
Technologies
Intl Class
Technology
Matters
Rank in Class
Top Patents (by citation)
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Recent Publications
- No Recent Publications to Display
Recent Patents
Expired/Abandoned/Withdrawn Patents
Patent #
Title
Status
Filing Date
Issue/Pub Date
Intl Class
4998339 Process for fabrication of an iron member with a winding for generation of electromagnetic fieldsExpiredSep 14, 89Mar 12, 91[H01F]
4725762 Circuit supplied with direct voltage for generating voltages and/or currents with different curve form and/or different frequency and/or different polarity with at least one loadExpiredOct 02, 86Feb 16, 88[H05B]
4456835 Method of operating a load from alternating current mains and circuit arrangement thereforExpiredDec 08, 81Jun 26, 84[H02J]
4359312 Reciprocating pump for the pulsation-free delivery of a liquidExpiredAug 15, 78Nov 16, 82[F04B]
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