RD

Robert E. Drake

HC Hy-Ko Products Company: 8 patents #6 of 20Top 30%
📍 Willoughby Hills, OH: #23 of 126 inventorsTop 20%
🗺 Ohio: #10,201 of 73,341 inventorsTop 15%
Overall (All Time): #642,976 of 4,157,543Top 20%
8
Patents All Time

Issued Patents All Time

Showing 1–8 of 8 patents

Patent #TitleCo-InventorsDate
10421133 Key duplication machine Michael A. Bass, William R. Mutch, Richard W. Ryai, Sr., Chester O. D. Thompson, Randall A. Porras 2019-09-24
9815126 Key duplication machine Michael A. Bass, William R. Mutch, Richard W. Ryai, Sr., Chester O. D. Thompson, Randall A. Porras 2017-11-14
9687920 Key duplication machine Michael A. Bass, William R. Mutch, Richard W. Ryai, Sr., Chester O. D. Thompson, Randall A. Porras 2017-06-27
9656332 Key duplication machine Michael A. Bass, William R. Mutch, Richard W. Ryai, Sr., Chester O. D. Thompson, Randall A. Porras 2017-05-23
9308590 Key duplication machine Michael A. Bass, William R. Mutch, Richard W. Ryai, Sr., Chester O. D. Thompson, Randall A. Porras 2016-04-12
8985918 Key duplication machine Michael A. Bass, William R. Mutch, Richard W. Ryai, Sr., Chester O. D. Thompson, Randall A. Porras 2015-03-24
8128322 Key duplication machine Michael A. Bass, William R. Mutch, Richard W. Ryai, Sr., Chester O. D. Thompson, Randall A. Porras 2012-03-06
7891919 Key duplication machine Michael A. Bass, William R. Mutch, Richard W. Ryai, Sr., Chester O. D. Thompson, Randall A. Porras 2011-02-22