Issued Patents All Time
Showing 1–23 of 23 patents
| Patent # | Title | Co-Inventors | Date |
|---|---|---|---|
| 7140618 | Socket with dual-functional composite gasket | — | 2006-11-28 |
| 6142484 | Composite multi-pressure gasket | — | 2000-11-07 |
| 5941021 | Louver-type window and slat therefor | Salvador Vassallo | 1999-08-24 |
| D330073 | Gasket | — | 1992-10-06 |
| 5145216 | Pipe connection assembly | — | 1992-09-08 |
| 5120153 | Fitting socket with integral reinforcing ring | — | 1992-06-09 |
| D326710 | Gasket | — | 1992-06-02 |
| 5099888 | Impact protected, sealed, double-walled pipe body | — | 1992-03-31 |
| 4968196 | Pattern wheel cutting apparatus | — | 1990-11-06 |
| 4834430 | Pipe socket insert | Efrain D. Vassallo | 1989-05-30 |
| 4826028 | Gasket seating ring | Efrain D. Vassallo | 1989-05-02 |
| 4723905 | Pipe belling apparatus | Efrain D. Vassallo | 1988-02-09 |
| 4693483 | Composite gasket and fitting including same | — | 1987-09-15 |
| D291480 | Tee pipe fitting | Efrain D. Vassallo | 1987-08-18 |
| D291481 | Elbow pipe fitting | Efrain D. Vassallo | 1987-08-18 |
| D291482 | Pipe coupling | Efrain D. Vassallo | 1987-08-18 |
| D291483 | Cross tee pipe fitting | Efrain D. Vassallo | 1987-08-18 |
| D289078 | Gasket | Efrain D. Vassallo | 1987-03-31 |
| 4637618 | Composite gasket and fitting including same | — | 1987-01-20 |
| 4625383 | Method for seating a gasket in a plastic pipe bell using a hard configured ring | Efrain D. Vassallo | 1986-12-02 |
| 4583772 | Pipe fitting interlocking system | Efrain D. Vassallo | 1986-04-22 |
| 4579354 | Gasket | Efrain D. Vassallo | 1986-04-01 |
| 4474392 | Pipe fitting construction | Efrain D. Vassallo | 1984-10-02 |