Issued Patents All Time
Showing 1–20 of 20 patents
| Patent # | Title | Co-Inventors | Date |
|---|---|---|---|
| 6817256 | Pipette sampling system | Zygmunt M. Andrevski, Zvi G. Loewy | 2004-11-16 |
| D358530 | Bike bottle | Richard A. Leoncavallo, Mark Giverc | 1995-05-23 |
| 5328058 | Dropper bottle assembly with squeeze cap | Richard A. Leoncavallo, Gregory R. Phillips | 1994-07-12 |
| 5246145 | Liquid dropper spout having lockable pivoted closure cap | Richard A. Leoncavallo, Gregory R. Phillips | 1993-09-21 |
| D338830 | Dropper nozzle and cover assembly | Richard A. Leoncavallo, Gregory R. Phillips | 1993-08-31 |
| 4993263 | Plastic hydrometer | Paul V. Comeau | 1991-02-19 |
| 4896783 | Container and cap assembly | Richard A. Leoncavallo, Peter K. Baird, Sharad Rajguru | 1990-01-30 |
| 4861466 | Pressure filter assembly with bleed valve | Richard A. Leoncavallo, Gregory R. Phillips | 1989-08-29 |
| 4858776 | Bottle closure assembly | — | 1989-08-22 |
| D297860 | Filter unit | Richard A. Leoncavallo, Peter K. Baird, Sharad Rajguru | 1988-09-27 |
| 4689147 | Plastic filter assembly | Richard A. Leoncavallo, Peter K. Baird, Sharad Rajguru | 1987-08-25 |
| 4614585 | Frangible bonded disposable filtration unit with recoverable filter | Robert G. Relyea, Peter K. Baird | 1986-09-30 |
| D284700 | Test tube rack | Richard A. Leoncavallo | 1986-07-15 |
| 4588158 | Single-piece injection molded rack | — | 1986-05-13 |
| 4588095 | Single-piece injection molded rack | — | 1986-05-13 |
| D270947 | Unitary, disposable filter unit | Heinz Hahn, Raj K. Aggarwal | 1983-10-11 |
| 4394266 | Pressure filter adapter and containment vessel | Raj K. Aggarwal | 1983-07-19 |
| 4357240 | Disposable, one-piece filter unit | Heinz Hahn, Raj K. Aggarwal | 1982-11-02 |
| D257390 | Test tube rack | Heinz Hahn | 1980-10-14 |
| 4211346 | Variable volume dispensing bottle with push-pull closure | James T. Hepinstall, Jr. | 1980-07-08 |