Inventor · disambiguated record

John S. Hartman

Also filed as: HARTMAN JOHN S

2 granted patents·61 citations·filing 1986–1988

65Inventor score

Technology areasG11B

Files withOPTICAL DATA INC2

Top patents by PatentIndex Score

2 records

0183US4825430AErasable optical data storage medium having an embedded servo track and a subsurface recording interfaceOPTICAL DATA INC·Filed 1986·Granted Apr 25, 1989·32 cites·16 claims
0281US4896314ABump-forming media including thin intermediate reflective layer and methods for writing, reading, and erasing sameOPTICAL DATA INC·Filed 1988·Granted Jan 23, 1990·29 cites·22 claims

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Identity basis: PatentsView inventor disambiguation (2025Q4-odp release). How scoring works →