Inventor · disambiguated record
Peter F. Erhardt
Also filed as: ERHARDT PETER · ERHARDT PETER F · ERHARDT PETER FRANKLIN · KARZ ROBERT S
19 granted patents·1 pending application·212 citations·filing 1973–2007
94Inventor score
Top patents by PatentIndex Score
20 records- 0194US4264697AImaging systemXEROX CORP·Filed 1979·Granted Apr 28, 1981·58 cites·15 claims
- 0290US4411974AOrtho-halo phenyl carboxylic acid charge enhancing additivesXEROX CORP·Filed 1982·Granted Oct 25, 1983·39 cites·33 claims
- 0381US5468586ASystem for controlling the color of toner mixturesXEROX CORP·Filed 1994·Granted Nov 21, 1995·25 cites·9 claims
- 0475US4256818AMagnetic or electrostatographic imaging and high speed fusing method uses polyamide resin in tonerXEROX CORP·Filed 1979·Granted Mar 17, 1981·16 cites·2 claims
- 0572US7709216B2Methods for preventing or reducing ischemia/reperfusion induced myocardial cell deathBOSTON BIOMEDICAL RES INST·Filed 2007·Granted May 4, 2010·1 cites·2 claims
- 0668US4324851APositive color tonersXEROX CORP·Filed 1979·Granted Apr 13, 1982·13 cites·6 claims
- 0760US5079122AToner compositions with charge enhancing additivesXEROX CORP·Filed 1990·Granted Jan 7, 1992·12 cites·36 claims
- 0855US4326019APositive toners containing long chain hydrazinium compoundsXEROX CORP·Filed 1981·Granted Apr 20, 1982·7 cites·11 claims
- 0955US4269922APositive toners containing long chain hydrazinium compoundsXEROX CORP·Filed 1979·Granted May 26, 1981·6 cites·7 claims
- 1050US2005250724A1Methods for preventing or reducing ischemia/reperfusion induced myocardial cell deathBOSTON BIOMEDICAL RES INST·Filed 2005·Application pending·0 cites
- 1148US5950057AHybrid scavengeless development using ion chargingXEROX CORP·Filed 1998·Granted Sep 7, 1999·8 cites·4 claims
- 1247US3950168AFixing powder imagesXEROX CORP·Filed 1973·Granted Apr 13, 1976·5 cites·15 claims
- 1342US4293632AAttrition process for alteration of toner particles containing conductive materialsXEROX CORP·Filed 1978·Granted Oct 6, 1981·4 cites·5 claims
- 1441US4286038APositive toners containing alkyl picolinium compoundsXEROX CORP·Filed 1979·Granted Aug 25, 1981·3 cites·4 claims
- 1539US4171274AAlteration of tesselated magnetic particles by fractureXEROX CORP·Filed 1977·Granted Oct 16, 1979·3 cites·7 claims
- 1637US4264702APositive toners containing alkyl morpholinium compounds as charge control agentsXEROX CORP·Filed 1979·Granted Apr 28, 1981·2 cites·5 claims
- 1737US4254205APositive toners containing alkyl picolinium compounds as charge control agentsXEROX CORP·Filed 1980·Granted Mar 3, 1981·5 cites·8 claims
- 1835US4014728AMethod of making an imaging memberXEROX CORP·Filed 1976·Granted Mar 29, 1977·3 cites·1 claims
- 1934US3979495AMethod of making a photoreceptorXEROX CORP·Filed 1974·Granted Sep 7, 1976·2 cites·2 claims
- 2030US4287284AMethod of imagining using positive toners containing alkyl morpholinium compoundsXEROX CORP·Filed 1980·Granted Sep 1, 1981·0 cites·9 claims
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Identity basis: PatentsView inventor disambiguation (2025Q4-odp release). How scoring works →