Railhead Corporation

Patent Owner

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Patent Activity in the Last 10 Years

Technologies

Intl Class Technology Matters Rank in Class
 
  
 
B61C LOCOMOTIVES; MOTOR RAILCARS 214
 
  
 
B60Q ARRANGEMENT OF SIGNALLING OR LIGHTING DEVICES, THE MOUNTING OR SUPPORTING THEREOF OR CIRCUITS THEREFOR, FOR VEHICLES IN GENERAL 163
 
  
 
B61D BODY DETAILS OR KINDS OF RAILWAY VEHICLES 125
 
  
 
B61L GUIDING RAILWAY TRAFFIC; ENSURING THE SAFETY OF RAILWAY TRAFFIC 125
 
  
 
F21S NON-PORTABLE LIGHTING DEVICES OR SYSTEMS THEREOF 155
 
  
 
F21V FUNCTIONAL FEATURES OR DETAILS OF LIGHTING DEVICES OR SYSTEMS THEREOF; STRUCTURAL COMBINATIONS OF LIGHTING DEVICES WITH OTHER ARTICLES, NOT OTHERWISE PROVIDED FOR 1109
 
  
 
F21Y INDEXING SCHEME ASSOCIATED WITH SUBCLASSES F21L, F21S and F21V, RELATING TO THE FORM OF THE LIGHT SOURCES 134

Top Patents (by citation)

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Recent Publications

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Recent Patents

Patent # Title Filing Date Issue Date Intl Class
9914466 Reverser handle and method of useSep 29, 16Mar 13, 18[B61L, F21V, F21Y, B61C, F21S]
9499180 Locomotive headlampJun 16, 15Nov 22, 16[F21Y, B61D, F21S]
9487220 Reverser handle and method of useJan 03, 13Nov 08, 16[B61C]
6294985 Remotely triggered collision avoidance strobe systemAug 05, 99Sep 25, 01[B60Q]

Expired/Abandoned/Withdrawn Patents

Patent # Title Status Filing Date Issue/Pub Date Intl Class
5013076 Locking plate holder for railroad bearing end capsExpiredDec 27, 89May 07, 91[B60B]
4483359 Pull away spill guardExpiredSep 27, 82Nov 20, 84[F16K]

Top Inventors for This Owner

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