| 6913643 |
Lightweight foamed glass aggregate |
— |
2005-07-05 |
| 6562245 |
Crushed foam glass filter aid and method of use |
Jeffrey E. Surma |
2003-05-13 |
| 5663997 |
Glass composition determination method and apparatus |
James E. Willis, Andrew L. Heilveil |
1997-09-02 |
| 4983458 |
Reflective particles |
— |
1991-01-08 |
| 4810675 |
Process for making lightweight body suitable for use as an additive in an article of manufacture |
— |
1989-03-07 |
| 4756931 |
Retroreflective materials and methods for their production and use |
John J. Giordano, Jeffrey P. Shawcross, Alfred Fuchs |
1988-07-12 |
| 4721389 |
Method and apparatus for measuring retroreflectivity of a reflective layer on a surface |
— |
1988-01-26 |
| 4677022 |
Process for making lightweight body suitable for use as an additive in an article of manufacture, such lightweight body itself, and composite containing same |
— |
1987-06-30 |
| 4609587 |
Retroreflective materials and use |
John J. Giordano, Jeffrey P. Shawcross, Alfred Fuchs |
1986-09-02 |
| 4328019 |
Melting system and process for use in the production of high temperature mineral wool insulation |
Edward L. Kells |
1982-05-04 |
| 4320244 |
Melting furnace for the production of mineral wool insulation |
Edward L. Kells |
1982-03-16 |