Lech S. Zielinski

Nortel Networks Limited: 2 patents #1,531 of 5,294Top 30%

📍 Ottawa, CA: #2,623 of 6,399 inventorsTop 45%

Overall (All Time): #2,358,351 of 4,157,543Top 60%

Patents All Time

Issued Patents All Time

Showing 1–2 of 2 patents

Patent #	Title	Co-Inventors	Date
4453043	Telephone for a physically handicapped person	Conrad D. Lafrance, Jacek Wojcik	1984-06-05
4421953	Telephone tactile alert system	—	1983-12-20