THE LOUIS BERKMAN COMPANY

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Patent Activity in the Last 10 Years

Technologies

Intl Class Technology Matters Rank in Class
 
  
 
B63B SHIPS OR OTHER WATERBORNE VESSELS; EQUIPMENT FOR SHIPPING 335
 
  
 
E01H STREET CLEANING; CLEANING OF PERMANENT WAYS; CLEANING BEACHES; CLEANING LAND; DISPERSING FOG IN GENERAL 317
 
  
 
B63C LAUNCHING, HAULING-OUT, OR DRY-DOCKING OF VESSELS; LIFE-SAVING IN WATER; EQUIPMENT FOR DWELLING OR WORKING UNDER WATER; MEANS FOR SALVAGING OR SEARCHING FOR UNDERWATER OBJECTS 214
 
  
 
B32B LAYERED PRODUCTS, i.e. PRODUCTS BUILT-UP OF STRATA OF FLAT OR NON-FLAT, e.g. CELLULAR OR HONEYCOMB, FORM1156
 
  
 
B60Q ARRANGEMENT OF SIGNALLING OR LIGHTING DEVICES, THE MOUNTING OR SUPPORTING THEREOF OR CIRCUITS THEREFOR, FOR VEHICLES IN GENERAL 163
 
  
 
C22C ALLOYS 171

Top Patents (by citation)

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Recent Publications

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Recent Patents

Patent # Title Filing Date Issue Date Intl Class
6265829 Multiplex light harnessMay 03, 00Jul 24, 01[B60Q]
6138388 Plug system for a snowplowFeb 22, 00Oct 31, 00[E01H]
6035797 Float drumJun 08, 98Mar 14, 00[B63B]
6021730 Float drumOct 30, 98Feb 08, 00[B63B]
5803003 Rotary boat liftJan 02, 97Sep 08, 98[B63C]
5361519 Control pad for a snowplowFeb 09, 93Nov 08, 94[E01H]
5314758 Hot dip terne coated roofing materialMar 27, 92May 24, 94[B32B, C22C]
5199371 Deck structure for floating dockDec 23, 91Apr 06, 93[B63B]
5184913 Watercraft launching and lift assembly and kit thereforFeb 03, 92Feb 09, 93[B63C]
5075988 Snowplow quick mount lift assemblyMar 25, 91Dec 31, 91[E01H]

Expired/Abandoned/Withdrawn Patents

Patent # Title Status Filing Date Issue/Pub Date Intl Class
2009/0023,012 CORROSION-RESISTANT COATED COPPER AND METHOD FOR MAKING THE SAMEAbandonedAug 13, 08Jan 22, 09[B32B]
2008/0003,450 Corrosion-resistant coated copper and method for making the sameAbandonedJun 05, 07Jan 03, 08[B32B]
2007/0104,975 Corrosion-resistant coated copper and method for making the sameAbandonedMay 05, 06May 10, 07[B32B]
2004/0213,916 Corrosion-resistant fuel tankAbandonedMay 26, 04Oct 28, 04[B32B]
2003/0110,666 Snowplow mountAbandonedJan 27, 03Jun 19, 03[E01H]
2003/0079,811 Corrosion-resistant coated metal and method for making the sameAbandonedMay 10, 02May 01, 03[C23C]
6398137 Mount and feeder arrangement for a precision placement spreaderExpiredOct 19, 00Jun 04, 02[A01C]
6361266 Rotatable feedgateExpiredFeb 09, 99Mar 26, 02[B60P]
6257164 Dock joint structureExpiredOct 25, 99Jul 10, 01[B63B]
6220532 Mount and feeder arrangement for a precision placement spreaderExpiredDec 21, 99Apr 24, 01[A01C]
6134813 Plastic moldboard plowExpiredDec 18, 98Oct 24, 00[E01H]
5988534 Spreader mount assemblyExpiredJun 08, 98Nov 23, 99[A01C]
5947391 Precision placement spreaderExpiredAug 28, 98Sep 07, 99[A01C]
5890867 Rotatable feedgateExpiredJul 09, 96Apr 06, 99[B60P]
5671693 Pontoon boat mooring systemExpiredJun 04, 96Sep 30, 97[B63B]
5669531 Conveyor for particulate materialExpiredMar 29, 95Sep 23, 97[B67D]
5340250 Apparatus for securing a load to a vehicleExpiredJun 28, 93Aug 23, 94[B61D, B60P]
5296300 Method treating terne steelExpiredJul 10, 91Mar 22, 94[B32B]
5259166 Roofing system for potable waterExpiredAug 29, 91Nov 09, 93[E04B, E04D]
5245950 Poultry watering systemExpiredAug 06, 92Sep 21, 93[A01K]

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