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Existing Patents On File

1. Thrust Bearing (DynaBearing): A maximum capacity cylindrical roller thrust bearing.
USA Patent No. 6,883,970 Filed April 2005
Canadian Patent No. 2 292 286 Filed July 2004

2. Concentric radii ball bearing stack: A self-aligning mud lubricated ball bearing stack.
USA Patent No. 7,246,947 Filed July 2007
Canadian Patent Application No. 2 504 233 Filed April 2005

3. Bearing with pass or fail wear gauge: A unitized angular contact mud lubricated ball bearing with ball wear gauge feature.
USA Patent No. 7,401,982 Filed July 22 2008
Canadian Patent Application No. 2 498 748 Filed Feb 2005

4. Sealed Bearing: A full complement ball or tapered roller thrust bearing with unifying seal elements.
USA Patent No. 7,841,774 B2 Filed Nov 30 2010
Canadian Patent Application No. 2,587,904 Filed April 2007

Patents Pending Application Approval

1. Non-diametrical multi-contact ball bearing: a high capacity unitized mud lubricated ball bearing.
USA Patent Application No. 12/237,641 Filed Sept 2007
Canadian Patent Application No. 2,603,390 Filed Sept 2007

2. Unitized 4-point angular contact mud lubricated ball bearing.
USA Patent Application No. (TBA) Filed Sept 2007
Canadian Patent Application No. (TBA) Filed Sept 2007