Inventor · disambiguated record
Mark R. Underwood
Also filed as: UNDERWOOD MARK · UNDERWOOD MARK R · UNDERWOOD MARK RAY
24 granted patents·623 citations·filing 1982–2017
97Inventor score
Files withDEERE & CO14PROBE ADVENTURES INC6GREAT PLAINS MFG INC2AGRI TECHNOLOGY1AGRI TECHNOLOGY INC1
Top patents by PatentIndex Score
24 records- 0196US9936631B1Device and method for detecting and reporting seed placementDEERE & CO·Filed 2016·Granted Apr 10, 2018·43 cites·19 claims
- 0296US5497605AHeader and feeder for a grain combineDEERE & CO·Filed 1994·Granted Mar 12, 1996·89 cites·45 claims
- 0393US5338257ACombine sieve distributor apparatusPROBE ADVENTURES INC·Filed 1993·Granted Aug 16, 1994·65 cites·30 claims
- 0489US4910946AExtensible combine headerPROBE ADVENTURES INC·Filed 1988·Granted Mar 27, 1990·51 cites·19 claims
- 0587US5282771ACombine sieve levelling apparatusPROBE ADVENTURES INC·Filed 1992·Granted Feb 1, 1994·49 cites·13 claims
- 0685US9839178B2Seed firmerDEERE & CO·Filed 2015·Granted Dec 12, 2017·11 cites·18 claims
- 0780US6439279B1Tree saw attachment with tweezer armGREAT PLAINS MFG INC·Filed 2001·Granted Aug 27, 2002·46 cites·27 claims
- 0879US4489733AAxial flow combinePROBE ADVENTURES INC·Filed 1982·Granted Dec 25, 1984·24 cites·16 claims
- 0970US10091927B2Seed firmerDEERE & CO·Filed 2017·Granted Oct 9, 2018·2 cites·9 claims
- 1068US5380247AGrain transportation apparatus for a combineAGRI TECHNOLOGY·Filed 1993·Granted Jan 10, 1995·26 cites·14 claims
- 1166US5496215AUnloading system for a combineDEERE & CO·Filed 1994·Granted Mar 5, 1996·26 cites·16 claims
- 1266US5045025ACo-rotational axial flow combinePROBE ADVENTURES INC·Filed 1990·Granted Sep 3, 1991·39 cites·37 claims
- 1365US4535787AAxial flow combinePROBE ADVENTURES INC·Filed 1984·Granted Aug 20, 1985·15 cites·5 claims
- 1462US7325623B2Rolling spike harrowGREAT PLAINS MFG INC·Filed 2005·Granted Feb 5, 2008·4 cites·7 claims
- 1562US5498206ARethreshing rotor for grain combineDEERE & CO·Filed 1994·Granted Mar 12, 1996·33 cites·19 claims
- 1656US5857907AExpandable and retractable unloaderDEERE & CO·Filed 1997·Granted Jan 12, 1999·19 cites·7 claims
- 1752US5601303ACombine trailerDEERE & CO·Filed 1994·Granted Feb 11, 1997·19 cites·20 claims
- 1851US5791986ACombine ripple panDEERE & CO·Filed 1996·Granted Aug 11, 1998·19 cites·10 claims
- 1949US5885155AThreshing assembly for a combineDEERE & CO·Filed 1997·Granted Mar 23, 1999·17 cites·6 claims
- 2042US5499948AModular threshing assembly for a combineDEERE & CO·Filed 1994·Granted Mar 19, 1996·10 cites·18 claims
- 2141US5509854ACombine elevator systemDEERE & CO·Filed 1995·Granted Apr 23, 1996·6 cites·4 claims
- 2235US5775991AHour glass shape discharge beaterDEERE & CO·Filed 1996·Granted Jul 7, 1998·5 cites·8 claims
- 2333US5453050ACombine elevator systemAGRI TECHNOLOGY INC·Filed 1994·Granted Sep 26, 1995·5 cites·20 claims
- 2429US5779542ANylatron support bearing for cageDEERE & CO·Filed 1996·Granted Jul 14, 1998·0 cites·11 claims
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Identity basis: PatentsView inventor disambiguation (2025Q4-odp release). How scoring works →