DR

Daniel T. Ropiak

SS S. C. Johnson & Son: 4 patents #401 of 1,588Top 30%
Overall (All Time): #1,186,359 of 4,157,543Top 30%
4
Patents All Time

Issued Patents All Time

Patent #TitleCo-InventorsDate
10004225 Wearable insect repelling patch Robert R. Emmrich, Phillip Kongshaug, Esther M. Helding 2018-06-26
9700041 Wearable insect repelling patch Robert R. Emmrich, Phillip Kongshaug, Esther M. Helding 2017-07-11
7921594 Methods for testing insect control products Gopal P. Ananth, Joel E. Adair, Dirk K. Nickel, Sebastian D. Hasik 2011-04-12
6551560 Two-stage dispensing mat Stanley J. Flashinski, Donald W. Hildebrandt 2003-04-22