KNOX KERSHAW, INC.

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Patent Activity in the Last 10 Years

Technologies

Intl Class Technology Matters Rank in Class
 
  
 
E02F DREDGING; SOIL-SHIFTING 342
 
  
 
B27C PLANING, DRILLING, MILLING, TURNING, OR UNIVERSAL MACHINES 211
 
  
 
E01B PERMANENT WAY; PERMANENT-WAY TOOLS; MACHINES FOR MAKING RAILWAYS OF ALL KINDS 121

Top Patents (by citation)

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Recent Publications

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Recent Patents

Patent # Title Filing Date Issue Date Intl Class
8544509 Adzer skid assembly and method of useOct 11, 10Oct 01, 13[B27C]
7000659 Adzer mount assemblyOct 26, 04Feb 21, 06[B27C]
5600903 Ballast shoulder cleanerOct 24, 94Feb 11, 97[E02F]
5493795 Ballast regulator having improved track cleaning meansApr 29, 94Feb 27, 96[E02F]
5459951 Ballast shoulder cleanerOct 04, 93Oct 24, 95[E02F]
5183118 High-capacity ballast reconditioning apparatusOct 31, 91Feb 02, 93[E01B]

Expired/Abandoned/Withdrawn Patents

Patent # Title Status Filing Date Issue/Pub Date Intl Class
5109775 Ballast reconditioning apparatus with multiple excavating wheels and independent cleaning stations for increased operating speedExpiredSep 28, 90May 05, 92[E01B]
5029649 Ballast reconditioning apparatusExpiredNov 19, 90Jul 09, 91[E01B]

Top Inventors for This Owner

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