Patents
.us
Search
Marketplace
Patent My Idea
Patents
/
Inventors
Alwin Mertens
Apeldoorn
NL
1 patent
2 Patents
US11912472
2024
Self-closing Dispensing Valve Made of a Plastomer or a Thermoplastic Elastomer
Weener Plastics Group B.V.
0 cites
US11840377
2023
Self-closing Valve with Indentations in Valve Head Contour
Weener Plastics Group B.V.
0 cites