David J. Spiegler

📍 Chicago, IL: #3,073 of 13,327 inventorsTop 25%

🗺 Illinois: #21,447 of 84,256 inventorsTop 30%

Overall (All Time): #1,192,296 of 4,157,543Top 30%

Patents All Time

Issued Patents All Time

Showing 1–4 of 4 patents

Patent #	Title	Co-Inventors	Date
D794730	Panel for training ball	—	2017-08-15
D779004	Training ball	—	2017-02-14
D775288	Training ball	—	2016-12-27
9149698	Ball skill enhancement training programs and methods	—	2015-10-06