DALMATIAN HUNTER HOLDINGS LTD.

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Patent Activity in the Last 10 Years

Technologies

Intl Class Technology Matters Rank in Class
 
 
 
F04D NON-POSITIVE-DISPLACEMENT PUMPS272
 
 
 
E21B EARTH OR ROCK DRILLING 195
 
 
 
F03B MACHINES OR ENGINES FOR LIQUIDS 123

Top Patents (by citation)

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Recent Publications

Publication # Title Filing Date Pub Date Intl Class
2017/0241,421 SUBMERSIBLE DISK-TYPE PUMP FOR VISCOUS AND SOLIDS-LADEN FLUIDS HAVING HELICAL INDUCERSep 10, 15Aug 24, 17[F04D, E21B]

Recent Patents

Patent # Title Filing Date Issue Date Intl Class
8066477 Staged centrifugal pump apparatus for pumping a viscous fluidMar 02, 09Nov 29, 11[F04D]
6227796 Conical stacked-disk impeller for viscous liquidsAug 06, 99May 08, 01[F03B]

Expired/Abandoned/Withdrawn Patents

Patent # Title Status Filing Date Issue/Pub Date Intl Class
6494621 Bushing and bearing assemblyExpiredMay 31, 01Dec 17, 02[F16C]

Top Inventors for This Owner

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