Andrew Grass

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Tea, SD, US

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Patents Grantslast 30 patents

Information Patent Grant
Bin sweep apparatus effective in two directions of movement
- Patent number 12,180,019
- Issue date Dec 31, 2024
- Sioux Steel Company
- Andrew Grass
- B65 - CONVEYING PACKING STORING HANDLING THIN OR FILAMENTARY MATERIAL
Information Patent Grant
Storage bin sweep system with enhanced peripheral sweep capability
- Patent number 11,618,639
- Issue date Apr 4, 2023
- Sioux Steel Company
- Andrew Grass
- B65 - CONVEYING PACKING STORING HANDLING THIN OR FILAMENTARY MATERIAL
Information Patent Grant
Storage bin sweep system with enhanced peripheral sweep capability
- Patent number 11,299,358
- Issue date Apr 12, 2022
- Sioux Steel Company
- Andrew Grass
- B65 - CONVEYING PACKING STORING HANDLING THIN OR FILAMENTARY MATERIAL