David Dvorak

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Houston, TX, US

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Patents Grantslast 30 patents

Information Patent Grant
Wastewater screen filter and chain tensioning system
- Patent number 11,717,774
- Issue date Aug 8, 2023
- Headworks Bio Inc.
- David Dvorak
- E03 - WATER SUPPLY SEWERAGE

Patents Applicationslast 30 patents

Information Patent Application
WASTEWATER SCREEN FILTER AND CHAIN TENSIONING SYSTEM
- Publication number 20200298149
- Publication date Sep 24, 2020
- Headworks International, Inc.
- David Dvorak
- B01 - PHYSICAL OR CHEMICAL PROCESSES OR APPARATUS IN GENERAL