Donald E. Derry

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North Kansas City, MO, US

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Patents Grantslast 30 patents

Information Patent Grant
Footing and foundation wall drainage system
- Patent number 11,926,984
- Issue date Mar 12, 2024
- Donald E. Derry
- E02 - HYDRAULIC ENGINEERING FOUNDATIONS SOIL SHIFTING

Patents Applicationslast 30 patents

Information Patent Application
FOOTING AND FOUNDATION WALL DRAINAGE SYSTEM
- Publication number 20230038717
- Publication date Feb 9, 2023
- K.C. Waterproofing, Inc.
- Donald E. Derry
- E02 - HYDRAULIC ENGINEERING FOUNDATIONS SOIL SHIFTING