Inventor · disambiguated record

Jan A. Douma

Also filed as: DOUMA JAN A

1 granted patent·95 citations·filing 1998–1998

53Inventor score

Technology areasA47L

Files withPHILIPS CORP1

Top patents by PatentIndex Score

1 record

0185US6090174ASeparator device provided with a cyclone chamber with a centrifugal unit, and vacuum cleaner provided with such a separator devicePHILIPS CORP·Filed 1998·Granted Jul 18, 2000·95 cites·19 claims

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