Inventor · disambiguated record
Erland Pettersson
Also filed as: PETTERSSON ERLAND
4 granted patents·17 citations·filing 1981–1997
66Inventor score
Top patents by PatentIndex Score
4 records- 0143US4896031AProximity fuse optical radiation receiver having wedge-shaped damping filter positioned adjacent photocellBOFORS AB·Filed 1988·Granted Jan 23, 1990·15 cites·24 claims
- 0226US4458147AApparatus for evaluating optical signalsBOFORS AB·Filed 1981·Granted Jul 3, 1984·2 cites·5 claims
- 0325US5839004ADevice and method for facilitating the focusing of a cameraHASSELBLAD AB VICTOR·Filed 1996·Granted Nov 17, 1998·0 cites·8 claims
- 0424US5884113ADevice and method for minimizing vignetting and stray light in a photographic apparatusHASSELBLAD AB VICTOR·Filed 1997·Granted Mar 16, 1999·0 cites·5 claims
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