Stfi
Records under this name other than patents Stfi holds now: patents now held by others, patents whose terms have ended, and its applications, pending or abandoned.
| Patent | Title | Status | Expires | Confidence |
|---|---|---|---|---|
| US 6,757,065 | Method of determining an illuminated surface Term ended Term ended Jan 8, 2022 · From the USPTO record | Term ended | Term ended Jan 8, 2022 | From the USPTO record |
| US 6,147,750 | Determination of gloss quality Term ended Term ended Oct 26, 2018 · From the USPTO record | Term ended | Term ended Oct 26, 2018 | From the USPTO record |
| US 6,615,509 | Apparatus and a process for drying a paper web Lapsed on the fee record Ended Sep 9, 2007 · From the USPTO record | Lapsed on the fee record | Ended Sep 9, 2007 | From the USPTO record |
| US 4,889,592 | Process and apparatus for control in burning and slaking of lime and causticizing Term ended Term ended no later than Dec 26, 2009 · Low confidence | Term ended | Term ended no later than Dec 26, 2009 | Low confidence |
| US 4,911,025 | Method and apparatus for preparing a suspension for measurement Term ended Term ended no later than Mar 27, 2010 · Low confidence | Term ended | Term ended no later than Mar 27, 2010 | Low confidence |
| US 4,911,790 | Paper production Term ended Term ended no later than Mar 27, 2010 · Low confidence | Term ended | Term ended no later than Mar 27, 2010 | Low confidence |
| US 4,939,929 | Measurement of the properties of a web in paper production Term ended Term ended no later than Jul 10, 2010 · Low confidence | Term ended | Term ended no later than Jul 10, 2010 | Low confidence |
| US 5,007,985 | Method of reducing the energy consumption at the refining of cellulose containing material Term ended Term ended no later than Apr 16, 2011 · Low confidence | Term ended | Term ended no later than Apr 16, 2011 | Low confidence |
| US 5,274,244 | Method and apparatus for detecting bark and for determining the degree of barking on wood and chips Term ended Term ended no later than Dec 28, 2013 · Low confidence | Term ended | Term ended no later than Dec 28, 2013 | Low confidence |
| US 5,331,405 | Method and apparatus for measuring fibre flexibility Term ended Term ended no later than Jul 19, 2014 · Low confidence | Term ended | Term ended no later than Jul 19, 2014 | Low confidence |