Inventor · Lynn Center, IL, US

Marion Calmer

46Patents
13h-index
6Co-inventors
74Inventor score

Filing activity: Jun 7, 1995 → Jan 7, 2025

Most-cited inventions

PatentTitleAreaCited byStatus
US7373767B2 Corn head row unit Human Necessities 52 Expired
US5704202A Universal corn picking row unit Human Necessities 37 Expired
US7886510B2 Stalk roll Human Necessities 27 Active
US9560804B1 Stalk roll with flutes defining a recess Human Necessities 24 Active
US8863487B2 Narrow row head unit Human Necessities 23 Active
US8220237B1 Stalk roll Human Necessities 22 Active
US8464505B1 Stalk roll Human Necessities 20 Active
US9668414B2 Stalk roll with series of flutes having decreasing lengths Human Necessities 18 Active
US10039232B2 Stalk roll Human Necessities 17 Active
US8171708B2 Stripper plate Human Necessities 17 Active
US8857139B1 Method and apparatus for stalk shear reduction Human Necessities 16 Active
USD494605S1 Low profile corn head row unit cover General 14 Expired
US10785911B2 Stalk roll with hybrid flute having a sharp edge and two blunt edges Human Necessities 13 Active
US9554511B1 Method and apparatus for stalk shear reduction Human Necessities 12 Active
US7104038B2 Strategic spatial realignment for attaching cornheads to combines Human Necessities 12 Expired
US10045483B2 Narrow row head unit ear guide Human Necessities 12 Active
US10420281B2 Narrow row head unit Human Necessities 12 Active
US11877538B1 Threshing grains and legumes utilizing concaves with adjustable openings Human Necessities 8 Active
US12150410B2 Twelve bladed stalk roll Human Necessities 3 Active
USD1032666S1 MOG limiting subassembly for combine concave General 2 Active
US11800832B2 Stalk roll flute Human Necessities 1 Active
US10674665B2 Stalk roll Human Necessities 0 Active
US12342758B2 Actuated stripper plate mechanism for a harvester Human Necessities 0 Active
US12279558B2 Stalk roll Human Necessities 0 Active
USD1031793S1 Separating grate General 0 Active

Source: USPTO / EPO open patent data. Inventor disambiguation is heuristic; counts are objective bibliographic measures.