Issued Patents All Time
| Patent # | Title | Co-Inventors | Date |
|---|---|---|---|
| 5328058 | Dropper bottle assembly with squeeze cap | Richard A. Leoncavallo, Ravinder C. Mehra | 1994-07-12 |
| 5246145 | Liquid dropper spout having lockable pivoted closure cap | Richard A. Leoncavallo, Ravinder C. Mehra | 1993-09-21 |
| D338830 | Dropper nozzle and cover assembly | Richard A. Leoncavallo, Ravinder C. Mehra | 1993-08-31 |
| 5080232 | Test tube rack and retainer | Richard A. Leoncavallo | 1992-01-14 |
| 4898278 | Storage container | Richard A. Leoncavallo, Linda J. Kover | 1990-02-06 |
| 4894155 | Single membrane disc supporting upper and lower membranes | Richard A. Leoncavallo | 1990-01-16 |
| 4861466 | Pressure filter assembly with bleed valve | Richard A. Leoncavallo, Ravinder C. Mehra | 1989-08-29 |
| 4771900 | Storage rack for box-like container | Richard A. Leoncavallo | 1988-09-20 |