YAMANI SPRING CO., LTD.

Patent Owner

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Patent Activity in the Last 10 Years

Technologies

Intl Class Technology Matters Rank in Class
 
 
 
F01L CYCLICALLY OPERATING VALVES FOR MACHINES OR ENGINES 154

Top Patents (by citation)

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Recent Publications

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Recent Patents

Patent # Title Filing Date Issue Date Intl Class
8915223 Valve timing control apparatusOct 14, 11Dec 23, 14[F01L]

Expired/Abandoned/Withdrawn Patents

Patent # Title Status Filing Date Issue/Pub Date Intl Class
2006/0267,620 Interconnecting apparatus and a contact element thereforAbandonedFeb 19, 03Nov 30, 06[G01R]

Top Inventors for This Owner

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