Inventor · disambiguated record
William M. Hann
Also filed as: HANN WILLIAM M · HANN WILLIAM MATHIS
11 granted patents·3 pending applications·663 citations·filing 1975–2002
93Inventor score
Files withROHM & HAAS11
Top patents by PatentIndex Score
14 records- 0196US4711725AMethod of stabilizing aqueous systemsROHM & HAAS·Filed 1986·Granted Dec 8, 1987·148 cites·9 claims
- 0295US6646082B2Corrosion inhibiting compositionsROHM & HAAS·Filed 2002·Granted Nov 11, 2003·60 cites·10 claims
- 0394US4299710ADrilling fluid and methodROHM & HAAS·Filed 1975·Granted Nov 10, 1981·80 cites·6 claims
- 0491US5531934AMethod of inhibiting corrosion in aqueous systems using poly(amino acids)ROHM & HAAS·Filed 1994·Granted Jul 2, 1996·76 cites·2 claims
- 0591US4530766AMethod of inhibiting scaling in aqueous systems with low molecular weight copolymersROHM & HAAS·Filed 1984·Granted Jul 23, 1985·54 cites·11 claims
- 0690US5277823ASilica scale inhibitionROHM & HAAS·Filed 1993·Granted Jan 11, 1994·98 cites·15 claims
- 0777US5516432AMethod for prevention of scale formation in aqueous systemsROHM & HAAS·Filed 1994·Granted May 14, 1996·41 cites·16 claims
- 0871US5658464AMethod of inhibiting sulfate scale in aqueous systems using poly(amino acids)ROHM & HAAS·Filed 1996·Granted Aug 19, 1997·36 cites·14 claims
- 0970US4517098AMethod of dispersing inorganic materials in aqueous systems with low molecular weight acrylic acid copolymersROHM & HAAS·Filed 1983·Granted May 14, 1985·29 cites·11 claims
- 1061US5755972AMethod for metal sulfate scale control in harsh oilfield conditionsROHM & HAAS·Filed 1997·Granted May 26, 1998·27 cites·11 claims
- 1150US5342787AMethod for solubilizing silicaROHM & HAAS·Filed 1993·Granted Aug 30, 1994·14 cites·9 claims
- 1238US2003063998A1Process for inhibiting metallic corrosion in aqueous systemsFiled 2002·Application pending·0 cites
- 1337US2003063999A1Inhibiting metallic corrosion in aqueous systemsFiled 2002·Application pending·0 cites
- 1430US2003035749A1Process for treating aqueous systemsFiled 2002·Application pending·0 cites
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Identity basis: PatentsView inventor disambiguation (2025Q4-odp release). How scoring works →