Inventor · disambiguated record
Richard E. Metzgar
Also filed as: METZGAR RICHARD E
2 granted patents·30 citations·filing 1997–1999
61Inventor score
Files withNALCO CHEMICAL CO2
Top patents by PatentIndex Score
2 records- 0152US6258279B1Hydrophilic cationic dispersion polymer for paper mill color removalNALCO CHEMICAL CO·Filed 1999·Granted Jul 10, 2001·20 cites·7 claims
- 0240US5961838AAmphoteric polymer/polyamine combinations for color removal and clarification of paper mill waste waterNALCO CHEMICAL CO·Filed 1997·Granted Oct 5, 1999·10 cites·4 claims
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Identity basis: PatentsView inventor disambiguation (2025Q4-odp release). How scoring works →