WITHERSPOON; KENT
Patent Applications and Registrations
Patent applications and USPTO patent grants for WITHERSPOON; KENT.The latest application filed is for "process in a (d) stage bleaching of softwood pulps in a presence of mg(oh)2".
- WITHERSPOON; KENT - Killen AL
| Patent | Date |
|---|---|
| Process in a (D) stage bleaching of softwood pulps in a presence of Mg(OH)2 App 20110265964 - YIN; CAIFANG ; et al. | 2011-11-03 |
| Process of bleaching hardwood pulps in a D1 or D2 stage in a presence of a weak base App 20110240238 - YIN; CAIFANG ; et al. | 2011-10-06 |
| Process of bleaching hardwood pulps in a D1 or D2 stage in a presence of a weak base Grant 7,976,677 - Yin , et al. July 12, 2 | 2011-07-12 |
| Process of bleaching softwood pulps in a D1 or D2 stage in a presence of a weak base Grant 7,976,676 - Yin , et al. July 12, 2 | 2011-07-12 |
| Process in a (D) stage bleaching of softwood pulps in a presence of Mg (OH) 2 App 20080142174 - Yin; Caifang ; et al. | 2008-06-19 |
| Process in a (D) stage bleaching of hardwood pulps in a presence of Mg (OH)2 App 20080142175 - Yin; Caifang ; et al. | 2008-06-19 |
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