Semyon L. Zheleznyak

SI Spectronic Instruments: 1 patents #4 of 6Top 70%

📍 Penfield, NY: #484 of 745 inventorsTop 65%

🗺 New York: #67,335 of 115,490 inventorsTop 60%

Overall (All Time): #3,616,142 of 4,157,543Top 90%

Patents All Time

Issued Patents All Time

Showing 1–1 of 1 patents

Patent #	Title	Co-Inventors	Date
6067197	Difraction grating having enhanced blaze performance at two wavelengths	Thomas C. Blasiak	2000-05-23