Individual holder
MARRAS WILLIAM S
US·3 granted patents·173 citations·filing 1990–1991
Individually held — no corporate assignee on record.
Top patents by PatentIndex Score
3 records- 0152US5094249AApparatus for monitoring the motion of the lumbar spineMARRAS WILLIAM S·Filed 1991·Granted Mar 10, 1992·73 cites·22 claims
- 0251US5143088AApparatus for monitoring the motion components of the spineMARRAS WILLIAM S·Filed 1991·Granted Sep 1, 1992·66 cites·6 claims
- 0339US5012819AApparatus for monitoring the motion components of the spineMARRAS WILLIAM S·Filed 1990·Granted May 7, 1991·34 cites·16 claims
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Counts cover granted patents and pending applications in the PatentIndex corpus. How scoring works →