Inventor · disambiguated record

Chrisopher A. Spence

Also filed as: SPENCE CHRISOPHER A

1 granted patent·202 citations·filing 1992–1992

56Inventor score

Technology areasG03F

Files withIBM1

Top patents by PatentIndex Score

1 record

0194US5300786AOptical focus phase shift test pattern, monitoring system and processIBM·Filed 1992·Granted Apr 5, 1994·202 cites·30 claims

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