David Sim — 2 Patents at Ryan Energy Technologies

David Sim has been granted 2 US patents while listed as an inventor at Ryan Energy Technologies. The first was granted in 2006 and the most recent in September 2008. David Sim ranks #1,709,992 of 4,157,543 US inventors in our database (top 41.1%). Patent records list David Sim in Calgary, AB, CA.

Issued Patents All Time

Showing 1–2 of 2 patents

Patent #	Title	Co-Inventors	Date
7429934	Mud pulse landing assembly for use in directional drilling	Michael T. Sutherland	2008-09-30
7088260	High speed data communication protocol for use with EM data telemetry antennae	Matthew R. White, Victor Koro, Michael T. Sutherland	2006-08-08

David Sim — 2 Patents

Issued Patents All Time

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