JA

Jan van Alfen

PB Plasticum Netherlands B.V.: 4 patents #3 of 10Top 30%
PB Plantics B.V.: 1 patents #6 of 13Top 50%
📍 Nijmegen, NL: #140 of 900 inventorsTop 20%
Overall (All Time): #998,458 of 4,157,543Top 25%
5
Patents All Time

Issued Patents All Time

Showing 1–5 of 5 patents

Patent #TitleCo-InventorsDate
9511906 Closure with tamper-evident strip having bent end portions Shi Ming Pun, Sebastiaan Wilhelmus Josephus Den Boer, Gerrit Jan Stegeman 2016-12-06
9409680 Tamper evident closure Shi Ming Pun, Sebastiaan Wilhelmus Josephus Den Boer, Gerrit Jan Stegeman 2016-08-09
9340335 Closure assembly with valve and method for its manufacturing Lenny Marita Ellenkamp-Van Olst, Sebastiaan Wilhelmus Josephus Den Boer, Gerrit Jan Stegeman 2016-05-17
9090386 Closure with tamper-evident strip Shi Ming Pun, Sebastiaan Wilhelmus Josephus Den Boer, Gerrit Jan Stegeman 2015-07-28
8640928 Closure assembly with valve and method for its manufacturing Lenny Marita Ellenkamp-Van Olst, Sebastiaan Wilhelmus Josephus Den Boer, Gerrit Jan Stegeman 2014-02-04