William A. Howell

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Slidell, LA, US

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Patents Grantslast 30 patents

Information Patent Grant
Dust-free powder substance delivery and filter system
- Patent number 5,518,343
- Issue date May 21, 1996
- Dengel; Carl A.
- William A. Howell
- B65 - CONVEYING PACKING STORING HANDLING THIN OR FILAMENTARY MATERIAL
Information Patent Grant
Dry fluid substance loading device
- Patent number 5,435,442
- Issue date Jul 25, 1995
- Dengel; Carl A.
- William A. Howell
- B07 - SEPARATING SOLIDS FROM SOLIDS SORTING
Information Patent Grant
Dry fluid substance loading device
- Patent number 5,398,813
- Issue date Mar 21, 1995
- Dengel; Carl A.
- William A. Howell
- B07 - SEPARATING SOLIDS FROM SOLIDS SORTING
Information Patent Grant
Portable industrial filter system
- Patent number 4,844,665
- Issue date Jul 4, 1989
- William A. Howell
- B65 - CONVEYING PACKING STORING HANDLING THIN OR FILAMENTARY MATERIAL