Issued Patents All Time
Showing 1–25 of 46 patents
| Patent # | Title | Co-Inventors | Date |
|---|---|---|---|
| 6659756 | System for preparing polymer encapsulated glass fiber pellets | Michael A. Strait, Homer G. Hill, Robert A. Schweizer, Leonard J. Adzima | 2003-12-09 |
| 6494012 | Acoustical composite steel member | — | 2002-12-17 |
| 6365090 | System for preparing polymer encapsulated glass fiber pellets | Michael A. Strait, Homer G. Hill, Robert A. Schweizer, Leonard J. Adzima | 2002-04-02 |
| 6158190 | Insulated composite steel member | — | 2000-12-12 |
| 5945134 | System for preparing glass fiber pellets | Michael A. Strait, Homer G. Hill, Robert A. Schweizer | 1999-08-31 |
| 5868982 | System for preparing glass fiber pellets | Michael A. Strait, Homer G. Hill, Robert A. Schweizer | 1999-02-09 |
| 4853024 | Scrap recovery apparatus | — | 1989-08-01 |
| 4819247 | Glass melt furnace | Frank J. Macdonald | 1989-04-04 |
| 4778503 | Method and apparatus for preheating glass batch | Mark A. Propster, Charles M. Hohman | 1988-10-18 |
| 4670054 | Heat processing of particulate material | Charles M. Hohman, Mark A. Propster | 1987-06-02 |
| 4650508 | Method and apparatus for changing bushings | Charles S. Dunn, Michael D. Hickman | 1987-03-17 |
| 4625920 | Rotary distributor | — | 1986-12-02 |
| 4615718 | Heating of heat transfer media | — | 1986-10-07 |
| 4592723 | Process for reusing scrap glass | — | 1986-06-03 |
| 4589119 | Electrode support mechanism and method | Charles S. Dunn | 1986-05-13 |
| 4588429 | Method of heating particulate material with a particulate heating media | Charles M. Hohman, Mark A. Propster | 1986-05-13 |
| 4565676 | Method for treating exhaust gases | Mark A. Propster, Subhash S. Kithany | 1986-01-21 |
| 4565562 | Two-stage heating media feeder for a glass batch preheating drum | — | 1986-01-21 |
| 4478627 | Recuperation of heat absorbent media to preheat combustion gases and glass batch | Charles M. Hohman, Mark A. Propster, Charles S. Dunn | 1984-10-23 |
| 4468164 | Method and apparatus for feeding raw material to a furnace | Charles S. Dunn | 1984-08-28 |
| RE31574 | Apparatus for handling heat-softenable batch material | — | 1984-05-01 |
| 4441906 | Method of preheating glass batch | Mark A. Propster, Charles M. Hohman | 1984-04-10 |
| 4425147 | Preheating glass batch | Charles M. Hohman, Mark A. Propster | 1984-01-10 |
| 4422847 | Preheating glass batch | Mark A. Propster, Charles M. Hohman | 1983-12-27 |
| 4422172 | Electrode support mechanism and method | Charles S. Dunn | 1983-12-20 |