Inventor · disambiguated record
Howard J. Ratzlaff
Also filed as: RATZLAFF HOWARD · RATZLAFF HOWARD J · RATZLAFF HOWARD JAMES
24 granted patents·1 pending application·477 citations·filing 1975–2012
97Inventor score
Top patents by PatentIndex Score
25 records- 0185US6032444ANon-row-sensitive forage harvesterHAY & FORAGE IND·Filed 1997·Granted Mar 7, 2000·48 cites·79 claims
- 0282US4604858APlunger cleanout apparatus for underfed crop balerHESSTON CORP·Filed 1984·Granted Aug 12, 1986·26 cites·9 claims
- 0381US5216873AWrapper cutoff mechanism for round balersHAY & FORAGE IND·Filed 1991·Granted Jun 8, 1993·39 cites·24 claims
- 0472US6050052ARound baler having positive start wrapper dispensing mechanismHAY & FORAGE IND·Filed 1998·Granted Apr 18, 2000·52 cites·21 claims
- 0569US5136831AContinuous round baler and methodHAY & FORAGE IND·Filed 1991·Granted Aug 11, 1992·47 cites·31 claims
- 0668US4524574AUnderfed crop baler having single rotary feederHESSTON CORP·Filed 1984·Granted Jun 25, 1985·16 cites·8 claims
- 0767US4386493AMethod and apparatus for making large round crop balesHESSTON CORP·Filed 1982·Granted Jun 7, 1983·16 cites·2 claims
- 0867US4011998AForage harvester having combined cut-and-throw cylinderHESSTON CORP·Filed 1975·Granted Mar 15, 1977·17 cites·13 claims
- 0961US5127217ARound baler having wide windrow converging mechanismHAY & FORAGE IND·Filed 1991·Granted Jul 7, 1992·21 cites·4 claims
- 1061US4815266AContinuous round baler with accumulating trailerHESSTON CORP·Filed 1987·Granted Mar 28, 1989·19 cites·9 claims
- 1159US6029434ADown turning stub augers on wide pick-up for round balersHAY & FORAGE IND·Filed 1996·Granted Feb 29, 2000·29 cites·6 claims
- 1255US5097760APowered trash removal apparatus for round balerHAY & FORAGE IND·Filed 1990·Granted Mar 24, 1992·24 cites·33 claims
- 1352US5819515AEased inlet tailgate roll arrangement for variable chamber round balerHAY & FORAGE IND·Filed 1996·Granted Oct 13, 1998·21 cites·18 claims
- 1451US5165333ARound baler having anti-wrapping idler rollsHAY & FORAGE IND·Filed 1991·Granted Nov 24, 1992·19 cites·19 claims
- 1548US5813204ARound baler having tailgate-responsive clutchHAY & FORAGE IND·Filed 1996·Granted Sep 29, 1998·17 cites·31 claims
- 1646US5839362ASingle cylinder hydraulic tension control system for round balersHAY & FORAGE IND·Filed 1997·Granted Nov 24, 1998·13 cites·22 claims
- 1745US5228280ARound baler having anti-wrapping core starterHAY & FORAGE IND·Filed 1991·Granted Jul 20, 1993·14 cites·14 claims
- 1843US5080009ARound baler having trash discharge mechanismHAY & FORAGE IND·Filed 1990·Granted Jan 14, 1992·13 cites·10 claims
- 1940US4782651ABottom loading in-line crop balerHAY AND FORAGE CORP·Filed 1987·Granted Nov 8, 1988·9 cites·8 claims
- 2039US2014326149A1Crop contacting roller driven by bale forming beltsAGCO CORP·Filed 2012·Application pending·0 cites
- 2137US4617786AForage harvester having supplemental crop disintegrating meansHESSTON CORP·Filed 1984·Granted Oct 21, 1986·6 cites·5 claims
- 2237US4321787AMethod and apparatus for making large round crop balesHESSTON CORP·Filed 1975·Granted Mar 30, 1982·5 cites·24 claims
- 2335US4819418ASimplified crop balerHESSTON CORP·Filed 1987·Granted Apr 11, 1989·4 cites·17 claims
- 2433USH1826HVertical chamber, open throat round baler having no starter rollHAY & FORAGE IND·Filed 1997·Granted Jan 4, 2000·2 cites·15 claims
- 2530US4390092AAnti-slip bale throwerHESSTON CORP·Filed 1979·Granted Jun 28, 1983·0 cites·8 claims
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