Assignee
BALASUBRAMANIAN N
6 granted patents·427 citations·filing 1978–1982
Top patents by PatentIndex Score
6 records- 0196US4340306AOptical system for surface topography measurementBALASUBRAMANIAN N·Filed 1980·Granted Jul 20, 1982·150 cites·15 claims
- 0295US4212073AMethod and system for surface contouringBALASUBRAMANIAN N·Filed 1978·Granted Jul 8, 1980·96 cites·14 claims
- 0392US4355904AOptical inspection device for measuring depthwise variations from a focal planeBALASUBRAMANIAN N·Filed 1980·Granted Oct 26, 1982·66 cites·10 claims
- 0491US4225240AMethod and system for determining interferometric optical path length differenceBALASUBRAMANIAN N·Filed 1978·Granted Sep 30, 1980·51 cites·14 claims
- 0588US4387994AOptical system for surface topography measurementBALASUBRAMANIAN N·Filed 1982·Granted Jun 14, 1983·45 cites·3 claims
- 0678US4272151AApparatus for optical scanningBALASUBRAMANIAN N·Filed 1979·Granted Jun 9, 1981·19 cites·3 claims
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