HY

Helen J. Yoo

PI Power Tool Institute: 3 patents #10 of 32Top 35%
IM Imation: 2 patents #167 of 622Top 30%
MIT: 1 patents #4,386 of 9,367Top 50%
📍 Maplewood, MN: #141 of 510 inventorsTop 30%
🗺 Minnesota: #11,810 of 52,454 inventorsTop 25%
Overall (All Time): #859,969 of 4,157,543Top 25%
6
Patents All Time

Issued Patents All Time

Showing 1–6 of 6 patents

Patent #TitleCo-InventorsDate
8424429 Pyrotechnic drop mechanism for power tools William R. Knapp, Jean-Pierre Krauer, Wilfred H. Anderson, Kyle L. Petrich, Jeffrey Y. Hayashida 2013-04-23
8074546 Pyrotechnic drop mechanism for power tools William R. Knapp, Jean-Pierre Krauer, Wilfred H. Anderson, Kyle L. Petrich, Jeffrey Y. Hayashida 2011-12-13
7628101 Pyrotechnic drop mechanism for power tools William R. Knapp, Jean-Pierre Krauer, Wilfred H. Anderson, Kyle L. Petrich, Jeffrey Y. Hayashida 2009-12-08
6822827 Erasure techniques for magnetic tape media John E. Heinz, Curtis B. Hause 2004-11-23
6644581 Flange guide for improved tape winding Douglas R. Plourde, William Qualls 2003-11-11
6508980 Metal and ceramic containing parts produced from powder using binders derived from salt Emanuel M. Sachs, Constantinos Hadjiloucas, Samuel M. Allen 2003-01-21