Exclusive sales inverted umbrella.
Our reverse folding umbrella already has the protection by U.S utility patent.
We are looking US distributor and partner. Contact us!  

Petet Liu
All Sell Creativity

All umbrella you can purchase from Amazon, of course have business price for sample.
Please refer this AMAZON logo link: 

The utility patent number is US 9,549,595 B1,
Also protection by U.S design patent.
The patent number is USD 797,437 S, US D813,523 S

Please refer that pdf document below., you can download it.
1.U.S utility patent:  US 9,549,595 B1,
2.U.S design patent: US D797,437 S
3.U.S design patent: US D813,523 S

Of Course we have patented of curved inverted umbrella.
We are origin inventor ,develop umbrella and make it real.

4. United states design patent US D838470S