Patent Explorer
Browse, filter, and analyze 4 patents across global jurisdictions.
| Patent Number | Title | Assignee | Status | Filing Date | Grant Date | Expires | Remaining | Claims | Actions |
|---|---|---|---|---|---|---|---|---|---|
| US5166115A | Polyurethanes | Albemarle Corp | Expired / Lapsed | 1992-02-03 | 1992-11-24 | 2012-02-03 | 0.0 yrs | 2 | |
| US5143942A | Polyurethanes | Albemarle Corp | Expired / Lapsed | 1991-10-28 | 1992-09-01 | 2011-10-28 | 0.0 yrs | 2 | |
| US4786656A | Polyhydroxyalkane/aromatic diamine chain extenders | Albemarle Corp | Expired / Lapsed | 1988-02-22 | 1988-11-22 | 2008-02-22 | 0.0 yrs | 27 | |
| US4631298A | Mixed diamine chain extender | Albemarle Corp | Expired / Lapsed | 1985-12-16 | 1986-12-23 | 2005-12-16 | 0.0 yrs | 37 |