Individual holder
POELSTRA THEO J
NL·2 granted patents·153 citations·filing 1989–1990
Individually held — no corporate assignee on record.
Top patents by PatentIndex Score
2 records- 0183US5166878AMethod and apparatus of computer aided surveying for obtaining digital, 3d topographic informationPOELSTRA THEO J·Filed 1990·Granted Nov 24, 1992·87 cites·7 claims
- 0275US4994971ASystem for setting up and keeping up-to-date datafiles for road trafficPOELSTRA THEO J·Filed 1989·Granted Feb 19, 1991·66 cites·4 claims
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