Inventor · disambiguated record
Charles B. Hartfelder
Also filed as: HARTFELDER CHARLES · HARTFELDER CHARLES B
23 granted patents·2 pending applications·284 citations·filing 2007–2024
96Inventor score
Files withPrince Castle LLC17MARMON FOODSERVICE TECHNOLOGIES INC3PRINCE CASTLE INC2VELTROP LOREN J2VELTROP LOREN1
Top patents by PatentIndex Score
25 records- 0198US9980322B1Multi-zone food holding binPrince Castle LLC·Filed 2016·Granted May 22, 2018·29 cites·10 claims
- 0298US9976750B1Multi-zone food holding binPrince Castle LLC·Filed 2016·Granted May 22, 2018·35 cites·10 claims
- 0395US10841981B1Multi-zone food holding binPrince Castle LLC·Filed 2019·Granted Nov 17, 2020·9 cites·66 claims
- 0495US10492641B2Multi-zone food holding binPrince Castle LLC·Filed 2018·Granted Dec 3, 2019·14 cites·34 claims
- 0594US10852002B1Multi-zone food holding binPrince Castle LLC·Filed 2019·Granted Dec 1, 2020·9 cites·29 claims
- 0693US9889992B1Conveyor belt slatPrince Castle LLC·Filed 2016·Granted Feb 13, 2018·14 cites·6 claims
- 0793US8096231B2Apparatus and method for maintaining cooked food in a ready-to-use conditionVELTROP LOREN J·Filed 2008·Granted Jan 17, 2012·40 cites·13 claims
- 0893US7858906B2Apparatus and method for maintaining cooked food in a ready-to-use conditionPRINCE CASTLE INC·Filed 2007·Granted Dec 28, 2010·40 cites·13 claims
- 0992US10512363B2Multi-zone food holding binPrince Castle LLC·Filed 2018·Granted Dec 24, 2019·6 cites·37 claims
- 1091US10486908B2Conveyor belt slat with side carrier connectionPrince Castle LLC·Filed 2018·Granted Nov 26, 2019·7 cites·4 claims
- 1191US9908708B1Conveyor belt link with coupling mechanismPrince Castle LLC·Filed 2016·Granted Mar 6, 2018·10 cites·8 claims
- 1290US8404292B2Apparatus and method for maintaining cooked food in a ready-to-use conditionVELTROP LOREN J·Filed 2011·Granted Mar 26, 2013·19 cites·6 claims
- 1389US7971523B2Removable divider for food warming apparatusPRINCE CASTLE INC·Filed 2007·Granted Jul 5, 2011·21 cites·20 claims
- 1486US10173844B2Conveyor belt link with coupling mechanismPrince Castle LLC·Filed 2018·Granted Jan 8, 2019·6 cites·14 claims
- 1579US10308433B2Conveyor belt slat with side carrier connectionPrince Castle LLC·Filed 2017·Granted Jun 4, 2019·3 cites·6 claims
- 1674US11771264B1Multi-zone food holding binMARMON FOODSERVICE TECHNOLOGIES INC·Filed 2020·Granted Oct 3, 2023·0 cites·20 claims
- 1774US10273089B2Conveyor belt slatPrince Castle LLC·Filed 2018·Granted Apr 30, 2019·1 cites·16 claims
- 1872USD1064814SFood holding binMARMON FOODSERVICE TECHNOLOGIES INC·Filed 2024·Granted Mar 4, 2025·2 cites·1 claims
- 1970USD872573SFood holding binPrince Castle LLC·Filed 2017·Granted Jan 14, 2020·8 cites·1 claims
- 2068USD809326SFood holding binPrince Castle LLC·Filed 2016·Granted Feb 6, 2018·8 cites·1 claims
- 2153USD1020455SFood holding binMARMON FOODSERVICE TECHNOLOGIES INC·Filed 2019·Granted Apr 2, 2024·3 cites·1 claims
- 2253US10494183B2Conveyor belt slat with side carrier connectionPrince Castle LLC·Filed 2018·Granted Dec 3, 2019·0 cites·6 claims
- 2353US10494182B2Conveyor belt slat with side carrier connectionPrince Castle LLC·Filed 2018·Granted Dec 3, 2019·0 cites·6 claims
- 2447US2012121782A1Conveyor Toaster with Self-Aligning BeltsVELTROP LOREN·Filed 2010·Application pending·0 cites
- 2535US2018000284A1Continuous conveyor belt for food heating devicePrince Castle LLC·Filed 2017·Application pending·0 cites
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Identity basis: PatentsView inventor disambiguation (2025Q4-odp release). How scoring works →