Polymer Processing Research Inst., Ltd.
Records under this name other than patents Polymer Processing Research Inst., Ltd. holds now: patents now held by others, patents whose terms have ended, and its applications, pending or abandoned.
Back to Polymer Processing Research Inst., Ltd.
| Patent | Title | Status | Expires | Confidence |
|---|---|---|---|---|
| US 6,132,661 | Longitudinally stretched nonwoven fabric and method for producing the same Term ended Term ended Nov 17, 2017 · From the USPTO record | Term ended | Term ended Nov 17, 2017 | From the USPTO record |
| US 6,063,492 | Adhesive tape and its base fabric Term ended Term ended Jul 24, 2017 · From the USPTO record | Term ended | Term ended Jul 24, 2017 | From the USPTO record |
| US 6,054,086 | Process of making high-strength yarns Lapsed on the fee record Ended Apr 25, 2004 · From the USPTO record | Lapsed on the fee record | Ended Apr 25, 2004 | From the USPTO record |
| US 6,051,175 | Process for producing filament and filament assembly composed of thermotropic liquid crystal polymer Lapsed on the fee record Ended Apr 18, 2004 · From the USPTO record | Lapsed on the fee record | Ended Apr 18, 2004 | From the USPTO record |
| US 6,048,808 | Nonwoven fabric and method of making the same Lapsed on the fee record Ended Apr 11, 2004 · From the USPTO record | Lapsed on the fee record | Ended Apr 11, 2004 | From the USPTO record |
| US 5,240,160 | Rotary splitting tool to fabricate a fibrillated web Term ended Term ended no later than Aug 31, 2013 · Low confidence | Term ended | Term ended no later than Aug 31, 2013 | Low confidence |
| US 5,265,506 | Method for fabricating a perforated film and its apparatus Term ended Term ended no later than Nov 30, 2013 · Low confidence | Term ended | Term ended no later than Nov 30, 2013 | Low confidence |
| US 5,287,742 | Device for detecting defects of web Term ended Term ended no later than Feb 22, 2014 · Low confidence | Term ended | Term ended no later than Feb 22, 2014 | Low confidence |
| US 5,290,377 | Method for producing reticular nonwoven fabric Term ended Term ended no later than Mar 1, 2014 · Low confidence | Term ended | Term ended no later than Mar 1, 2014 | Low confidence |
| US 5,307,609 | Apparatus for wrapping and method therefor Term ended Term ended no later than May 3, 2014 · Low confidence | Term ended | Term ended no later than May 3, 2014 | Low confidence |