LaFleur Petroleum Services, Inc.

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Patent Activity in the Last 10 Years

Technologies

Intl Class Technology Matters Rank in Class
 
  
 
E21B EARTH OR ROCK DRILLING 492
 
  
 
F16L PIPES; JOINTS OR FITTINGS FOR PIPES; SUPPORTS FOR PIPES, CABLES OR PROTECTIVE TUBING; MEANS FOR THERMAL INSULATION IN GENERAL268

Top Patents (by citation)

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Recent Publications

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Recent Patents

Patent # Title Filing Date Issue Date Intl Class
6460620 Mudsaver valveNov 29, 99Oct 08, 02[E21B]
5435386 Cementing plugNov 07, 94Jul 25, 95[E21B]
5433270 Cementing plugApr 29, 94Jul 18, 95[E21B]
5361835 Cementing plugJan 06, 94Nov 08, 94[E21B]
5348351 Coupling apparatusJan 31, 94Sep 20, 94[F16L]
5282653 Coupling apparatusDec 18, 91Feb 01, 94[F16L]

Expired/Abandoned/Withdrawn Patents

Patent # Title Status Filing Date Issue/Pub Date Intl Class
2002/0096,334 Mudsaver valveAbandonedJan 22, 01Jul 25, 02[E21B]
5311940 Cementing plugExpiredMar 29, 93May 17, 94[E21B]
5242018 Cementing plugExpiredOct 16, 91Sep 07, 93[E21B]
5152554 Coupling apparatusExpiredDec 18, 90Oct 06, 92[F16L]
4782894 Cementing plug container with remote control systemExpiredJan 12, 87Nov 08, 88[E21B]
4427065 Cementing plug container and method of use thereofExpiredJun 23, 81Jan 24, 84[E21B]

Top Inventors for This Owner

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