Issued Patents All Time
Showing 1–11 of 11 patents
| Patent # | Title | Co-Inventors | Date |
|---|---|---|---|
| 9931693 | Filtering check valve for metal casting | Lee Horvath, Sam N. Ramrattan, Sean B. Harmon | 2018-04-03 |
| 8367749 | Coated microspheres and their uses | — | 2013-02-05 |
| 8071664 | Compositions containing certain metallocenes and their uses | Michael Trevenen Brown, Jorg Kroker, Xianping Wang | 2011-12-06 |
| 7967053 | Process for casting a part from a pour of molten metal into a mold assembly | Ralph E. Showman | 2011-06-28 |
| 7659327 | Coated microspheres and their use | — | 2010-02-09 |
| 7270172 | Process for casting a metal | — | 2007-09-18 |
| 6360808 | Exothermic sleeve compositions containing aluminum dross | Helena Twardowska | 2002-03-26 |
| 6335387 | Insulating sleeve compositions containing fine silica and their use | Helena Twardowska | 2002-01-01 |
| 6286585 | Sleeve mixes containing stabilized microspheres and their use in making riser sleeves | Helena Twardowska | 2001-09-11 |
| 5915450 | Riser sleeves for custom sizing and firm gripping | David M. Gilson, John L. Perrins | 1999-06-29 |
| D397702 | Riser sleeve | David M. Gilson, John L. Perrins | 1998-09-01 |