Kretchmer, Claudia

Patent Owner

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Patent Activity in the Last 10 Years

Technologies

Intl Class Technology Matters Rank in Class
 
  
 
A44C JEWELLERY; BRACELETS; OTHER PERSONAL ADORNMENTS; COINS 218
 
  
 
C21D MODIFYING THE PHYSICAL STRUCTURE OF FERROUS METALS; GENERAL DEVICES FOR HEAT TREATMENT OF FERROUS OR NON-FERROUS METALS OR ALLOYS; MAKING METAL MALLEABLE BY DECARBURISATION, TEMPERING, OR OTHER TREATMENTS 144
 
  
 
C22C ALLOYS 171
 
  
 
C22F CHANGING THE PHYSICAL STRUCTURE OF NON-FERROUS METALS OR NON-FERROUS ALLOYS 136
 
  
 
H01F MAGNETS; INDUCTANCES; TRANSFORMERS; SELECTION OF MATERIALS FOR THEIR MAGNETIC PROPERTIES 183

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Recent Publications

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Recent Patents

Patent # Title Filing Date Issue Date Intl Class
7216508 Magnetically attractable components for jewelry articlesOct 07, 05May 15, 07[A44C]
6869567 Magnetic platinum alloysMay 09, 03Mar 22, 05[H01F, C22C]
6562158 Heat-treatable platinum-gallium-palladium alloy for jewelrySep 10, 01May 13, 03[C22F]
5188679 Metal compression-spring gemstone mountingsJan 15, 92Feb 23, 93[C21D]

Expired/Abandoned/Withdrawn Patents

Patent # Title Status Filing Date Issue/Pub Date Intl Class
7571623 Magnetically attractable components for self-sizing jewelry articlesExpiredApr 09, 04Aug 11, 09[A44C]
2007/0084,241 Magnetic repulsion components for jewelry articlesAbandonedOct 06, 06Apr 19, 07[A44C]
7013674 Magnetically attractable components for self-sizing jewelry articlesExpiredApr 10, 03Mar 21, 06[A44C]
5846352 Heat treatment of a platinum-gallium alloy for jewelryExpiredNov 22, 96Dec 08, 98[C22C]
5084108 Method for forming metal compression-spring gemstone mountingExpiredOct 19, 90Jan 28, 92[C21D]
4927070 Method for making multi-colored composite laminatesExpiredMar 10, 89May 22, 90[B23K]

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