Sortwell & Co.
Records under this name other than patents Sortwell & Co. holds now: patents now held by others, patents whose terms have ended, and its applications, pending or abandoned.
| Patent | Title | Status | Expires | Confidence |
|---|---|---|---|---|
| US 9,540,469 | Multivalent Polymers for Clay Aggregation Formerly held In force · High confidence | In force | High confidence | |
| US 9,150,442 | Method for Dispersing and Aggregating Components of Mineral Slurries and High-Molecular Weight Multivalent Polymers for Clay Aggregation Formerly held In force · Medium confidence | In force | Medium confidence | |
| US 8,721,896 | Method for Dispersing and Aggregating Components of Mineral Slurries and Low Molecular Weight Multivalent Polymers for Mineral Aggregation Formerly held In force · Medium confidence | In force | Medium confidence | |
| US 9,090,726 | Low Molecular Weight Multivalent Cation-Containing Acrylate Polymers Formerly held In force · High confidence | In force | High confidence | |
| US 9,487,610 | Low Molecular Weight Multivalent Cation-containing Acrylate Polymers Formerly held In force · Medium confidence | In force | Medium confidence | |
| US 6,190,561 | Method of water treatment using zeolite crystalloid coagulants Term ended Term ended Feb 17, 2018 · From the USPTO record | Term ended | Term ended Feb 17, 2018 | From the USPTO record |
| US 6,183,600 | Method of making paper Lapsed on the fee record Ended Feb 6, 2005 · From the USPTO record | Lapsed on the fee record | Ended Feb 6, 2005 | From the USPTO record |
| US 5,882,605 | Reactor for the productions of flowable viscous products Term ended Term ended no later than Mar 16, 2019 · Low confidence | Term ended | Term ended no later than Mar 16, 2019 | Low confidence |
| US 5,897,012 | Collapsible intermediate bulk container Term ended Term ended no later than Apr 27, 2019 · Low confidence | Term ended | Term ended no later than Apr 27, 2019 | Low confidence |
| US 5,900,116 | Method of making paper Term ended Term ended no later than May 4, 2019 · Low confidence | Term ended | Term ended no later than May 4, 2019 | Low confidence |