RYGAN CORP.

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Patent Activity in the Last 10 Years

Technologies

Intl Class Technology Matters Rank in Class
 
  
 
F28D HEAT-EXCHANGE APPARATUS, NOT PROVIDED FOR IN ANOTHER SUBCLASS, IN WHICH THE HEAT-EXCHANGE MEDIA DO NOT COME INTO DIRECT CONTACT 243
 
  
 
F28F DETAILS OF HEAT-EXCHANGE OR HEAT-TRANSFER APPARATUS, OF GENERAL APPLICATION 250
 
  
 
C09K MATERIALS FOR APPLICATIONS NOT OTHERWISE PROVIDED FOR; APPLICATIONS OF MATERIALS NOT OTHERWISE PROVIDED FOR194
 
  
 
F24J PRODUCTION OR USE OF HEAT NOT OTHERWISE PROVIDED FOR 123
 
  
 
F25B REFRIGERATION MACHINES, PLANTS, OR SYSTEMS; COMBINED HEATING AND REFRIGERATION SYSTEMS; HEAT PUMP SYSTEMS 167

Top Patents (by citation)

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Recent Publications

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Recent Patents

Patent # Title Filing Date Issue Date Intl Class
9816023 Method, apparatus, header, and composition for ground heat exchangeMar 09, 10Nov 14, 17[C09K, F24J, F28D, F28F]
9121630 Method, apparatus, conduit, and composition for low thermal resistance ground heat exchangeOct 28, 08Sep 01, 15[F28D, F25B, F28F]

Expired/Abandoned/Withdrawn Patents

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Top Inventors for This Owner

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