AL

Alfred Langerak

📍 Mijnsheerenland, NL: #3 of 16 inventorsTop 20%
Overall (All Time): #936,685 of 4,157,543Top 25%
5
Patents All Time

Issued Patents All Time

Showing 1–5 of 5 patents

Patent #TitleCo-InventorsDate
12132851 Alert system, delivery system and method and door bell system Frederik Ekkel 2024-10-29
11659075 Alert system, delivery system and method and door bell system Frederik Ekkel 2023-05-23
10757235 Alert system, delivery system and method and door bell system Frederik Ekkel 2020-08-25
5992128 System for girding articles 1999-11-30
D401970 Girding tool 1998-12-01