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Jan H. Ettrich
Geneva, IL
US
5 patents
6 Patents
US12400507
2025
Entry Access System and Method for Questionnaire Screening
Masonite Corporation
0 cites
US12110738
2024
Panel Doors and Related Method
MASONITE CORPORATION
0 cites
US11781372
2023
Door Assemblies with Insulated Glazing Unit Venting
Masonite Corporation
0 cites
US11739586
2023
Door Assemblies with Insulated Glazing Unit Venting
Masonite Corporation
0 cites
US11727740
2023
Entry Access System and Method with Questionnaire Screening
MASONITE CORPORATION
0 cites
US11649666
2023
Panel Doors and Related Method
Masonite Corporation
0 cites