- Improved the inappropriate design structures to lower product cost
- Injection Molding, Packaging Printing, and regular shipping to Amazon FBA warehouse.
- Helped client to fight copycats in China by involving law firms.
Electric Soldering Iron (portable with battery)
- Reverse engineered from sample, made 3D drawings
- Improved electronic circuit to make it more reliable (less prone to soldering problems)
- Tested thoroughly (aging test, drop test, fatigue test, functional test)