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Andrew P. Dretzka

HA Harnischfeger: 6 patents #7 of 121Top 6%
JM Joy Global Surface Mining: 2 patents #27 of 88Top 35%
NO Nordco: 1 patents #38 of 74Top 55%
📍 New Berlin, WI: #64 of 571 inventorsTop 15%
🗺 Wisconsin: #5,297 of 40,088 inventorsTop 15%
Overall (All Time): #560,212 of 4,157,543Top 15%
9
Patents All Time

Issued Patents All Time

Showing 1–9 of 9 patents

Patent #TitleCo-InventorsDate
D926825 Spiker anvil head James Henry Abbey, Dallas Reinert, Nichalos Lee Schultz, Alan John Stager 2021-08-03
11021850 Conduit support structure for an industrial machine with pivot joint Douglas Maki, Ethan Pedretti, Anab Akanda, Jason E. Gaska, Christopher S. Jones +2 more 2021-06-01
10435862 Conduit support structure for an industrial machine with hoist cable Douglas Maki, Ethan Pedretti, Anab Akanda, Jason E. Gaska, Christopher S. Jones +2 more 2019-10-08
9783958 Drive mechanism for mining attachment 2017-10-10
9382685 Conduit support structure for an industrial machine with saddle block Douglas Maki, Ethan Pedretti, Anab Akanda, Jason E. Gaska, Christopher S. Jones +1 more 2016-07-05
5636460 Dragline with cantilevered side-access dump block 1997-06-10
5590968 Bearing retainer assembly 1997-01-07
5410826 Assembly and method for tooth tip retention Darryl R. Immel, Harvey J. Kallenberger 1995-05-02
5398433 Bucket dump block 1995-03-21