Hafco Foundry and Machine Company, Incorporated

Patent Owner

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Patent Activity in the Last 10 Years

Technologies

Intl Class Technology Matters Rank in Class
 
 
 
1504 CONSTRUCTION MACHINERY31
 
 
 
A01C PLANTING; SOWING; FERTILISING 129

Top Patents (by citation)

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Recent Publications

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Recent Patents

Patent # Title Filing Date Issue Date Intl Class
D777796 Rock dust blowerJun 26, 14Jan 31, 17[1504]
D752111 Rock dust blowerMay 03, 13Mar 22, 16[1504]
8613401 Rock dust blower and methodOct 18, 11Dec 24, 13[A01C]
D681684 Rock dust blowerOct 18, 11May 07, 13[1504]

Expired/Abandoned/Withdrawn Patents

Patent # Title Status Filing Date Issue/Pub Date Intl Class
4915032 Door hanger assemblyExpiredMar 29, 89Apr 10, 90[B16D, E05D]

Top Inventors for This Owner

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