Andrew Grzelka — 2 Patents at Litton Systems

Andrew Grzelka has been granted 2 US patents while listed as an inventor at Litton Systems. All of these patents were granted in 1985. Andrew Grzelka ranks #1,709,992 of 4,157,543 US inventors in our database (top 41.1%). Patent records list Andrew Grzelka in Gautier, MS, US.

Issued Patents All Time

Showing 1–2 of 2 patents

Patent #	Title	Co-Inventors	Date	Approx Value ⓘ
4538938	Adjustable locking chock system	Davis R. Hodges	1985-09-03	$17,021,000
4505616	Self-locking chock system for a jack-up rig unit	David R. M. Hodges, Lawrence M. Ruckdeschel	1985-03-19	$13,968,000

Andrew Grzelka — 2 Patents

Issued Patents All Time

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