KEYSTONE ENGINEERING INC.

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Patent Activity in the Last 10 Years

Technologies

Intl Class Technology Matters Rank in Class
 
  
 
E02D FOUNDATIONS; EXCAVATIONS; EMBANKMENTS 617
 
  
 
E02B HYDRAULIC ENGINEERING 117
 
  
 
F03D WIND MOTORS139

Top Patents (by citation)

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Recent Publications

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Recent Patents

Patent # Title Filing Date Issue Date Intl Class
9725868 Offshore support structureMay 22, 15Aug 08, 17[E02B, E02D]
8888414 Grouted cylindrical connection utilizing bearing surfaces for offshore monopile foundationsNov 27, 12Nov 18, 14[E02D]
8511940 Offshore support structure and associated method of installingJun 09, 10Aug 20, 13[E02D]
7942611 Offshore structure supportMay 21, 08May 17, 11[E02D]
7198453 Offshore structure support and foundation for use with a wind turbine and an associated method of assemblyDec 20, 04Apr 03, 07[F03D]
7134809 Offshores structure supportFeb 11, 05Nov 14, 06[E02D]
6783305 Offshore structure supportMay 20, 02Aug 31, 04[E02D]

Expired/Abandoned/Withdrawn Patents

Patent # Title Status Filing Date Issue/Pub Date Intl Class
8444349 Grouted pile splice and method of forming a grouted pile spliceExpiredJun 03, 10May 21, 13[E02D]
2006/0237,600 Offshore structure supportAbandonedJun 26, 06Oct 26, 06[A47B]
2006/0115,364 Offshore structure support and foundation for use with a wind turbine and an associated method of assemblyAbandonedNov 10, 05Jun 01, 06[F04D]

Top Inventors for This Owner

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