Issued Patents All Time
Showing 26–46 of 46 patents
| Patent # | Title | Co-Inventors | Date |
|---|---|---|---|
| 6789303 | Liquid dispenser and assembly methods therefor | Wilhelmus Johannes Joseph Maas | 2004-09-14 |
| 6378739 | Precompression system for a liquid dispenser | Wilhelmus Johannes Joseph Maas | 2002-04-30 |
| 6364172 | Liquid dispenser and assembly methods therefor | Wilhelmus Johannes Joseph Maas | 2002-04-02 |
| 5749501 | Shroud and skeletal body for trigger sprayer | Wilhelmus Johannes Joseph Maas | 1998-05-12 |
| 5641125 | Nozzle assembly including a nozzle cap and a unitary nose bushing | Douglas S. Martin, Wilhelmus Johannes Joseph Maas | 1997-06-24 |
| 5477989 | Child resistant nozzle cover | Wilhelmus Johannes Joseph Maas | 1995-12-26 |
| 5467900 | Precompression valve for trigger sprayer | Wilhelmus Johannes Joseph Maas | 1995-11-21 |
| 5397060 | Foam-spray-off trigger sprayer | Wilhelmus Johannes Joseph Maas | 1995-03-14 |
| 5341965 | Plastic spring assembly for trigger sprayer | Wilhelmus Johannes Joseph Maas | 1994-08-30 |
| 5332128 | Flap valve assembly for trigger sprayer | Wilhelmus J. J. Mass | 1994-07-26 |
| 5318206 | Trigger-piston connection | Wilhelmus Johannes Joseph Maas | 1994-06-07 |
| 5297701 | All plastic trigger sprayer | Emile B. Steijns, Wilhelmus Johannes Joseph Maas | 1994-03-29 |
| 5267692 | Adjustable nozzle assembly | Wilhelmus Johannes Joseph Maas | 1993-12-07 |
| 5238152 | Quick-locking child resistant bottle cap assembly | Wilhelmus Johannes Joseph Maas | 1993-08-24 |
| 5228602 | Plastic spring assembly for trigger sprayer | Wilhelmus Johannes Joseph Maas | 1993-07-20 |
| 5228600 | Child resistant nozzle for trigger sprayer | Emile B. Steijns | 1993-07-20 |
| 5169032 | Tamper evident sprayer/nozzle assembly | Emile B. Steijns, Wilhelmus Johannes Joseph Maas | 1992-12-08 |
| 5152436 | Snap-in trigger | Wilhelmus Johannes Joseph Maas | 1992-10-06 |
| 4991778 | Adjustable nozzle assembly | Wilhelmus Johannes Joseph Maas | 1991-02-12 |
| 4925106 | Foam-off nozzle assembly with barrel screen insert for use in a trigger sprayer | Wilhelmus Johannes Joseph Maas | 1990-05-15 |
| 4917303 | Snap-in trigger | Wilhelmus Johannes Joseph Maas | 1990-04-17 |