John M. Gerpheide — 2 Patents at Optex Co.

John M. Gerpheide has been granted 2 US patents while listed as an inventor at Optex Co.. The first was granted in 1996 and the most recent in July 1998. John M. Gerpheide ranks #1,709,992 of 4,157,543 US inventors in our database (top 41.1%). Patent records list John M. Gerpheide in Silver Spring, MD, US.

Issued Patents All Time

Showing 1–2 of 2 patents

Patent #	Title	Co-Inventors	Date
5781130	M-ary (d,k) runlength limited coding for multi-level data	Steven W. McLaughlin, Allen M. Earman	1998-07-14
5537382	Partial response coding for a multi-level optical recording channel	Steven W. McLaughlin, Arthur Robert Calderbank, Rajiv Laroia	1996-07-16

John M. Gerpheide — 2 Patents

Issued Patents All Time

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