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11. Mahmoud G. D. El-Sherbiny, A Novel Weighing and Handling Conveyor for Packaging Lines – Patent 23412, 2006.
12. Mahmoud G. D. El-Sherbiny, Anew Approach for efficient Industrial Cooling Towers- Patent 23030, 2005.
13. Mahmoud G. D. El-Sherbiny, A Novel Design of a Conditioning Machine- Patent 23083, 2005.
14. Mahmoud G. D. El-Sherbiny, COMPUTERIZED AND AUTOMATED Filing Cabinet which acts also for Spare parts stores and Medications and Pharmacutical Drug Stores- Patent 22956, 2003.
15. Mahmoud G. D. El-Sherbiny, Anew Design of Vibrating Conveyor for Material Handeling- Patent 22957, 2003.
16. Mahmoud G. D. El-Sherbiny, A New Design for Mixing, Heating, and Doseing Tanks for Industrial Process Plants- Patent 22958, 2003.
17. Mahmoud G. D. El-Sherbiny, A New Design for Cyclones to Minimize Air Pollution- Patent 22959, 2003.
18. -Mahmoud G. D. El-Sherbiny, A Conceptual Design for Train coach Isolation in Emergencies- Patent 22960, 2003.
19. Patent No. 2015111806 EG ” Centrifugal spark arrester  Design A” T. A. Osman and others.
20. Patent No. 2015111807 EG ” Centrifugal spark arrester  Design B” T. A. Osman and others