Susan T. Robertson

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Ambler, PA, US

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Patents Grantslast 30 patents

Information Patent Grant
Method for metal sulfate scale control in harsh oilfield conditions
- Patent number 5,755,972
- Issue date May 26, 1998
- Rohm & Haas Company
- William Mathis Hann
- C02 - TREATMENT OF WATER, WASTE WATER, SEWAGE, OR SLUDGE
Information Patent Grant
Method of inhibiting sulfate scale in aqueous systems using poly(am...
- Patent number 5,658,464
- Issue date Aug 19, 1997
- Rohm & Haas Company
- William Mathis Hann
- C02 - TREATMENT OF WATER, WASTE WATER, SEWAGE, OR SLUDGE
Information Patent Grant
Silica scale inhibition
- Patent number 5,277,823
- Issue date Jan 11, 1994
- Rohm & Haas Company
- William M. Hann
- C02 - TREATMENT OF WATER, WASTE WATER, SEWAGE, OR SLUDGE