Inventor · disambiguated record
Roger Yiming Leung
Also filed as: LEUNG ROGER Y · LEUNG ROGER YIMING
7 granted patents·107 citations·filing 1994–1996
86Inventor score
Top patents by PatentIndex Score
7 records- 0175US6273998B1Production of paper and paperboardBETZDEARBORN INC·Filed 1994·Granted Aug 14, 2001·31 cites·13 claims
- 0267US5529699AWater-soluble cationic copolymers and their use as flocculantsGRACE W R & CO·Filed 1995·Granted Jun 25, 1996·21 cites·8 claims
- 0364US5473033AWater-soluble cationic copolymers and their use as drainage retention aids in papermaking processesGRACE W R & CO·Filed 1995·Granted Dec 5, 1995·20 cites·18 claims
- 0454US5720888AWater-soluble cationic copolymers and their use as flocculantsBETZDEARBORN INC·Filed 1996·Granted Feb 24, 1998·12 cites·10 claims
- 0546US5700893AWater-soluble cationic copolymers and their use as flocculants and drainage aidsBETZDEARBORN INC·Filed 1995·Granted Dec 23, 1997·10 cites·18 claims
- 0640US5681912AWater-soluble cationic copolymers and their use as flocculants and drainage retention aidsBETZDEARBORN INC·Filed 1995·Granted Oct 28, 1997·5 cites·20 claims
- 0738US5516852AMethod of producing water-soluble cationic copolymersGRACE W R & CO·Filed 1995·Granted May 14, 1996·8 cites·20 claims
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Identity basis: PatentsView inventor disambiguation (2025Q4-odp release). How scoring works →