Liberty Diversified Industries

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Patent Activity in the Last 10 Years

Technologies

Intl Class Technology Matters Rank in Class
 
  
 
F24F AIR-CONDITIONING; AIR-HUMIDIFICATION; VENTILATION; USE OF AIR CURRENTS FOR SCREENING 837
 
  
 
E04D ROOF COVERINGS; SKY-LIGHTS; GUTTERS; ROOF-WORKING TOOLS 225
 
  
 
B66F HOISTING, LIFTING, HAULING, OR PUSHING, NOT OTHERWISE PROVIDED FOR, e.g. DEVICES WHICH APPLY A LIFTING OR PUSHING FORCE DIRECTLY TO THE SURFACE OF A LOAD 122
 
  
 
E04B GENERAL BUILDING CONSTRUCTIONS; WALLS, e.g. PARTITIONS; ROOFS; FLOORS; CEILINGS; INSULATION OR OTHER PROTECTION OF BUILDINGS 146
 
  
 
F04F PUMPING OF FLUID BY DIRECT CONTACT OF ANOTHER FLUID OR BY USING INERTIA OF FLUID TO BE PUMPED 113

Top Patents (by citation)

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Recent Publications

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Recent Patents

Patent # Title Filing Date Issue Date Intl Class
6913530 Precipitation resistant ridge ventAug 07, 03Jul 05, 05[F24F]
6623354 Precipitation resistant ridge ventJul 31, 02Sep 23, 03[F24F]
6450882 Precipitation resistant ridge ventAug 30, 00Sep 17, 02[F24F]
RE37388 Ridge cap type roof ventilatorMar 10, 94Sep 25, 01[E04D, F24F]
5946868 Adjustable air deflector for a roof ventilatorSep 24, 93Sep 07, 99[F04F]
5934995 Ridge cap roof ventilator applied in assembled, rolled form and method of making and installingMar 26, 97Aug 10, 99[F24F]
5651734 Ridge cap roof ventilator applied in roll form and method of useDec 11, 95Jul 29, 97[F24F]
5331783 Ridge cap type roof ventilatorJan 14, 93Jul 26, 94[E04B]
5304095 Roof ventilator having longitudinally aligned folding sectionsSep 24, 93Apr 19, 94[F24F]
5281076 Forklift attachmentMay 24, 93Jan 25, 94[B66F]

Expired/Abandoned/Withdrawn Patents

Patent # Title Status Filing Date Issue/Pub Date Intl Class
2008/0182,507 Precipitation resistant ridge ventAbandonedMar 06, 08Jul 31, 08[E04D, F24F]
2008/0157,048 HANDRAIL INSERTAbandonedDec 21, 07Jul 03, 08[E04H]
2008/0125,028 Precipitation resistant ridge ventAbandonedJan 10, 08May 29, 08[F24F]
2004/0198,216 Precipitation resistant ridge ventAbandonedApr 16, 04Oct 07, 04[F24F]
2002/0029,860 Moisture barrier paper and process for making the sameAbandonedMay 07, 01Mar 14, 02[D21H, D21F]
D348284 Stackable tray for paper stock and drawingsExpiredDec 06, 91Jun 28, 94[]
5318182 Stackable and reversible trays for storing drawing sheets, paper stock, and the likeExpiredDec 06, 91Jun 07, 94[B65D]
5232149 Tote container made from a blank having diagonally biased corrugations and method for constructing sameExpiredFeb 24, 89Aug 03, 93[B65D]
D336701 Wastebasket component system for recyclable materialsExpiredJan 07, 91Jun 22, 93[]
5215210 Molded plastic pail with integrally formed bailExpiredApr 16, 92Jun 01, 93[B65D]
D332854 Caddy for attachment to a waste receptacleExpiredApr 11, 91Jan 26, 93[]
D332681 Modular system of recyclable waste receptaclesExpiredApr 11, 91Jan 19, 93[]
D329154 File for recyclable paper materialsExpiredApr 11, 90Sep 08, 92[]
D328539 File for recyclable paper materialsExpiredApr 11, 90Aug 11, 92[]
5137212 Security disposal cabinet with removable internal container particularly for recycleable confidential waste paper materialExpiredSep 06, 91Aug 11, 92[E06B, B65G, B65D]
D327348 Folded lid for a binExpiredJan 29, 90Jun 23, 92[]
D326344 Security waste disposal cabinet with pivotal doorExpiredApr 11, 90May 19, 92[]
5114034 Utility tote container with unfastenable and refastenable side walls and end wallsExpiredJan 22, 91May 19, 92[B65D]
5108000 Recyclable materials caddy for hanging attachment to a waste receptacleExpiredJun 26, 90Apr 28, 92[B65D]
5105968 Security disposal cabinet with removable internal container particularly for recyclable confidential waste paper materialExpiredJun 25, 90Apr 21, 92[B65D, E05G]

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