EVERETT D. HOUGEN IRREVOCABLE TRUST

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Patent Activity in the Last 10 Years

Technologies

Intl Class Technology Matters Rank in Class
 
  
 
A63B APPARATUS FOR PHYSICAL TRAINING, GYMNASTICS, SWIMMING, CLIMBING, OR FENCING; BALL GAMES; TRAINING EQUIPMENT 661

Top Patents (by citation)

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Recent Publications

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Recent Patents

Patent # Title Filing Date Issue Date Intl Class
6500095 Portable personal breathing apparatus and method for exercising the lungsOct 27, 99Dec 31, 02[A63B]
6083141 Portable respiratory exercise apparatus and method for using the sameNov 26, 97Jul 04, 00[A63B]
5910071 Portable, personal breathing apparatusAug 18, 97Jun 08, 99[A63B]
5899832 Compact lung exercising deviceJun 13, 97May 04, 99[A63B]
5890998 Portable personal breathing apparatusJan 30, 98Apr 06, 99[A63B]
5658221 Portable personal breathing apparatus and method of using sameJun 07, 95Aug 19, 97[A63B]

Expired/Abandoned/Withdrawn Patents

Patent # Title Status Filing Date Issue/Pub Date Intl Class
5595166 Double barrel speargunExpiredOct 24, 94Jan 21, 97[F41B]
D365581 Rail drillExpiredApr 05, 95Dec 26, 95[]
5372118 Double barrel speargunExpiredOct 16, 92Dec 13, 94[F41B]
5203650 Method and apparatus for drilling holesExpiredJan 09, 92Apr 20, 93[B23B]
5145296 Apparatus and method for cutting holesExpiredAug 28, 90Sep 08, 92[B23B]
4952102 Annular hole cutterExpiredMar 20, 89Aug 28, 90[B23B]
4892447 Torque restraining device for drill with self-attaching baseExpiredFeb 08, 88Jan 09, 90[B23B]
4813819 Method for cutting holesExpiredApr 01, 88Mar 21, 89[B23B]
4632610 Annular hole cutterExpiredOct 15, 85Dec 30, 86[B23B]
4619532 Shaker for paint containersExpiredNov 29, 84Oct 28, 86[B01F]

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