Inventor · disambiguated record

Ella M. Duyck

Also filed as: DUYCK ELLA M

2 granted patents·245 citations·filing 1992–1993

71Inventor score

Technology areasB41J

Files withHEWLETT PACKARD CO2

Top patents by PatentIndex Score

2 records

0194US5600358AInk pen having a hydrophobic barrier for controlling ink leakageHEWLETT PACKARD CO·Filed 1993·Granted Feb 4, 1997·160 cites·13 claims
0291US5526030APressure control apparatus for an ink penHEWLETT PACKARD CO·Filed 1992·Granted Jun 11, 1996·85 cites·16 claims

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