Patent Leaderboard
USPTO Patent Rankings Data through Sept 30, 2025
CB

Craig R. Bartels

NDNitto Denko: 1 patents #86 of 260Top 35%
San Diego, CA: #1,794 of 4,495 inventorsTop 40%
California: #26,007 of 66,859 inventorsTop 40%
Overall (2021): #489,791 of 548,734Top 90%
1 Patents 2021

Issued Patents 2021

Showing 1–1 of 1 patents

Patent #TitleCo-InventorsDate
11117101 Selectively permeable graphene oxide membrane Shijun Zheng, Weiping Lin, Yuji Yamashiro, Isamu Kitahara, John Ericson +5 more 2021-09-14