WM

Wilhelmus Johannes Joseph Maas

AP Afa Products: 24 patents #1 of 9Top 15%
DB Dispensing Technologies B.V.: 22 patents #1 of 16Top 7%
AB Afa Polytek B.V.: 11 patents #1 of 2Top 50%
SS S. C. Johnson & Son: 1 patents #961 of 1,588Top 65%
U.S. Philips: 1 patents #4,133 of 8,851Top 50%
📍 Someren, NL: #1 of 41 inventorsTop 3%
Overall (All Time): #36,624 of 4,157,543Top 1%
62
Patents All Time

Issued Patents All Time

Showing 51–62 of 62 patents

Patent #TitleCo-InventorsDate
5318206 Trigger-piston connection Petrus Lambertus Wilhelmus Hurkmans 1994-06-07
D346547 Sprayer Emile B. Steijns 1994-05-03
5297701 All plastic trigger sprayer Emile B. Steijns, Petrus Lambertus Wilhelmus Hurkmans 1994-03-29
5267692 Adjustable nozzle assembly Petrus Lambertus Wilhelmus Hurkmans 1993-12-07
5238152 Quick-locking child resistant bottle cap assembly Petrus Lambertus Wilhelmus Hurkmans 1993-08-24
5228602 Plastic spring assembly for trigger sprayer Petrus Lambertus Wilhelmus Hurkmans 1993-07-20
5169032 Tamper evident sprayer/nozzle assembly Emile B. Steijns, Petrus Lambertus Wilhelmus Hurkmans 1992-12-08
5152436 Snap-in trigger Petrus Lambertus Wilhelmus Hurkmans 1992-10-06
4991778 Adjustable nozzle assembly Petrus Lambertus Wilhelmus Hurkmans 1991-02-12
4989790 Nozzle cap, spring valve and body assembly Douglas S. Martin 1991-02-05
4925106 Foam-off nozzle assembly with barrel screen insert for use in a trigger sprayer Petrus Lambertus Wilhelmus Hurkmans 1990-05-15
4917303 Snap-in trigger Petrus Lambertus Wilhelmus Hurkmans 1990-04-17