FRIEDRICH AIR CONDITIONING CO., A DIVISION OF U.S. NATURAL RESOURCES, INC.

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Patent Activity in the Last 10 Years

Technologies

Intl Class Technology Matters Rank in Class
 
  
 
F25D REFRIGERATORS; COLD ROOMS; ICE-BOXES; COOLING OR FREEZING APPARATUS NOT COVERED BY ANY OTHER SUBCLASS 343
 
  
 
B21D WORKING OR PROCESSING OF SHEET METAL OR METAL TUBES, RODS OR PROFILES WITHOUT ESSENTIALLY REMOVING MATERIAL; PUNCHING 155
 
  
 
B23P OTHER WORKING OF METAL; COMBINED OPERATIONS; UNIVERSAL MACHINE TOOLS 155
 
  
 
F24F AIR-CONDITIONING; AIR-HUMIDIFICATION; VENTILATION; USE OF AIR CURRENTS FOR SCREENING 144
 
  
 
F24H FLUID HEATERS, e.g. WATER OR AIR HEATERS, HAVING HEAT-GENERATING MEANS, IN GENERAL 126
 
  
 
G05B CONTROL OR REGULATING SYSTEMS IN GENERAL; FUNCTIONAL ELEMENTS OF SUCH SYSTEMS; MONITORING OR TESTING ARRANGEMENTS FOR SUCH SYSTEMS OR ELEMENTS 1100
 
  
 
2304 VENTILATION AND AIR-CONDITIONING EQUIPMENT133

Top Patents (by citation)

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Recent Publications

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Recent Patents

Patent # Title Filing Date Issue Date Intl Class
9535408 Control system for a room air conditioner and/or heat pumpApr 19, 10Jan 03, 17[G05B]
8959771 Method of constructing a shell for a room air conditioner/heat pump with lateral strengthAug 31, 11Feb 24, 15[F24H, B23P, B21D]
8752399 Room air conditioner and/or heaterJan 22, 10Jun 17, 14[F25D, F24F]
8640480 Room air conditioner and/or heat pumpJan 22, 10Feb 04, 14[F25D]
D616084 Room air conditioner grillNov 24, 09May 18, 10[2304]
5271242 Heat pump with heat exchanger air inlet/exhaust ductJan 21, 93Dec 21, 93[F25D]
5140830 Self-contained indoor air conditioning systemOct 30, 91Aug 25, 92[F25D]

Expired/Abandoned/Withdrawn Patents

Patent # Title Status Filing Date Issue/Pub Date Intl Class
2012/0186,277 APPARATUS AND METHOD FOR INSTALLATION BY UNLICENSED PERSONNEL OF A PRE-CHARGED, DUCTLES HEATING/COOLING SYSTEMAbandonedJan 25, 11Jul 26, 12[B23P, F25B]
2012/0053,738 REMOTE CONTROL SYSTEM FOR A ROOM AIR CONDITIONER AND/OR HEAT PUMPAbandonedOct 07, 11Mar 01, 12[G05D]
6098416 Heat pump, housing and methodExpiredDec 10, 98Aug 08, 00[F25D]
5901566 Heat pumpExpiredNov 20, 97May 11, 99[F25D]
5533346 Heat pump and methodExpiredJun 01, 94Jul 09, 96[F25D]
5335721 Air conditioner modular unit with dual cross flow blowersExpiredMay 22, 92Aug 09, 94[F28F]
D348727 Heat pumpExpiredJan 03, 92Jul 12, 94[]
5272889 Pulley mounting and bearing system for air conditioners with dual tangential blowersExpiredAug 21, 92Dec 28, 93[F25D]
5152336 Air conditioner modular unit with dual cross flow blowersExpiredFeb 12, 91Oct 06, 92[F28D]
5094089 Driving system for dual tangential blowers in an air conditionerExpiredFeb 12, 90Mar 10, 92[F25D]
D322848 Package terminal air conditionerExpiredFeb 23, 89Dec 31, 91[]
D321248 Package terminal air conditionerExpiredFeb 23, 89Oct 29, 91[]
5060720 Method and apparatus for cooling motors of cross flow blowersExpiredAug 02, 90Oct 29, 91[H02K, F04B]
5038577 Air intake arrangement for air conditioner with dual cross flow blowersExpiredFeb 12, 90Aug 13, 91[E06B, F25D]
D318110 Control panel for a packaged terminal air conditionerExpiredFeb 13, 90Jul 09, 91[]
D290996 Compact heat exchangerExpiredOct 24, 84Jul 21, 87[]
4644759 Heat pump and methodExpiredJun 30, 86Feb 24, 87[F25B]
4598558 Heat pump and methodExpiredMay 23, 85Jul 08, 86[F25B]
4570452 Earth-type heat exchanger for heat pump systemsExpiredApr 29, 85Feb 18, 86[F24J, F28F]
4516629 Earth-type heat exchanger for heat pump systemExpiredSep 22, 82May 14, 85[F24J, F28F]

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