Inventor · disambiguated record
Per Frederiksen
Also filed as: FREDERIKSEN PER · FREDERIKSEN PER D
2 granted patents·46 citations·filing 1979–2013
63Inventor score
Top patents by PatentIndex Score
2 records- 0182US9821245B2Toy building setLEGO AS·Filed 2013·Granted Nov 21, 2017·14 cites·5 claims
- 0268US4230157APipe having an end portion, the inner wall of which is provided with a circumferential groove, in which a sealing means is mounted and a pipe joint consisting of this pipe and a spigot end of a second pipe inserted thereinWAVIN BV·Filed 1979·Granted Oct 28, 1980·32 cites·19 claims
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Identity basis: PatentsView inventor disambiguation (2025Q4-odp release). How scoring works →