Steward Machine Co., Inc.

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Patent Activity in the Last 10 Years

Technologies

Intl Class Technology Matters Rank in Class
 
  
 
E01D BRIDGES 411
 
  
 
G01D MEASURING NOT SPECIALLY ADAPTED FOR A SPECIFIC VARIABLE; ARRANGEMENTS FOR MEASURING TWO OR MORE VARIABLES NOT COVERED BY A SINGLE OTHER SUBCLASS; TARIFF METERING APPARATUS; MEASURING OR TESTING NOT OTHERWISE PROVIDED FOR 159

Top Patents (by citation)

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Recent Publications

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Recent Patents

Patent # Title Filing Date Issue Date Intl Class
8590086 Wear resisting span lock systemApr 11, 13Nov 26, 13[E01D]
7020924 Static stabilizers for bridgesMar 29, 04Apr 04, 06[E01D]
6701562 Span lock with centering guideAug 16, 02Mar 09, 04[G01D]
6588041 Pre-load adjustment for span lock systemFeb 11, 02Jul 08, 03[E01D]
5327605 Energy-absorbing span lock system for drawbridgesMar 31, 93Jul 12, 94[E01D]

Expired/Abandoned/Withdrawn Patents

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Top Inventors for This Owner

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