Inventor · disambiguated record

Willem Coenraad Bergwerf

Also filed as: BERGWERF WILLEM COENRAAD

2 granted patents·12 citations·filing 1995–1997

53Inventor score

Technology areasB43M

Files withHADEWE BV2

Top patents by PatentIndex Score

2 records

0136US5899050AMethod and apparatus for filling and closing envelopesHADEWE BV·Filed 1997·Granted May 4, 1999·11 cites·13 claims
0225US5983609AMethod and apparatus for opening an envelopeHADEWE BV·Filed 1995·Granted Nov 16, 1999·1 cites·12 claims

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