Frank E. Herkes

EA E.I. Du Pont De Nemours And: 26 patents #186 of 8,010Top 3%

DN Dsm N.V.: 3 patents #98 of 669Top 15%

📍 Wilmington, DE: #132 of 3,182 inventorsTop 5%

🗺 Delaware: #252 of 7,163 inventorsTop 4%

Overall (All Time): #147,903 of 4,157,543Top 4%

Patents All Time

Issued Patents All Time

Showing 26–27 of 27 patents

Patent #	Title	Co-Inventors	Date
4283306	Crystalline silica and use in alkylation of aromatics	—	1981-08-11
4279815	Production of high-quality aromatic amino azo compounds by the rearrangement of 1,3-diaryl triazenes	—	1981-07-21