Fuel-free greenhouse device (1942)
Floppy disk (1950): Zhong Song's invention is actually a record reading device, but in order to protect the patent on floppy disk, IBM signed a contract with Zhong Song in February 1979 to avoid disputes. Zhong Song signed 16 patent contracts with IBM.
"putter" golf club (198 1 year)
Wrist mobile phone (1995): a mobile phone that can be worn on the wrist.
Low back pain prevention device (1996)
Shoulder-hung portable shopping bag (1997)
Smelling toilet (1998) lovejet spray (1999)
Liquid battery shoes (year 200 1)
Brain wave strengthening chair