Issued Patents All Time
Showing 1–18 of 18 patents
| Patent # | Title | Co-Inventors | Date |
|---|---|---|---|
| 9133049 | Method of reducing redox ratio of molten glass and the glass made thereby | Larry J. Shelestak | 2015-09-15 |
| 5007950 | Compressed, wedged float glass bottom structure | Bert K. Krushinski, Robert A. Lawhon, Francis A. Radecki | 1991-04-16 |
| 4969942 | Glass melter exhaust duct cleaning method and apparatus | John K. Groetzinger | 1990-11-13 |
| 4886539 | Method of vacuum refining of glassy materials with selenium foaming agent | Richard L. Gerutti, David R. Haskins, Robert B. Heithoff, Wright M. Welton | 1989-12-12 |
| 4874313 | Refractory clad lid for heating vessel | — | 1989-10-17 |
| 4849004 | Pulsed pressure method for vacuum refining of glassy materials | David A. Hanekamp, Jr., Homer R. Foster | 1989-07-18 |
| 4824462 | Flow control means for molten glass or the like | — | 1989-04-25 |
| 4819859 | Lamination of oxide dispersion strengthened platinum and alloys | — | 1989-04-11 |
| 4780122 | Vacuum refining of glass or the like with enhanced foaming | Wright M. Welton, Boyd S. Dawson, Joseph M. Matesa, Larry J. Shelestak | 1988-10-25 |
| 4738938 | Melting and vacuum refining of glass or the like and composition of sheet | Gerald E. Kunkle, Wright M. Welton | 1988-04-19 |
| 4704153 | Vacuum refining of glassy materials with controlled foaming | Joseph M. Matesa | 1987-11-03 |
| 4633481 | Induction heating vessel | — | 1986-12-30 |
| 4600426 | Metering device for molten glass and the like | — | 1986-07-15 |
| 4496387 | Transition between batch preheating and liquefying stages apparatus | Robert B. Heithoff, John K. Groetzinger | 1985-01-29 |
| 4322235 | Float glass forming chamber with horizontal heating elements | — | 1982-03-30 |
| 4311508 | Float glass forming chamber with cast roof | — | 1982-01-19 |
| 4260407 | Gas cushioned ice skate edge stretcher | — | 1981-04-07 |
| 4185982 | Method of measuring temperature of a sheet with a noncontacting-type pyrometer | — | 1980-01-29 |