Prince Castle LLC
163Patents
126Active
163Granted
58Portfolio score
Filing activity: Dec 27, 1977 → Mar 5, 2020 · 32 expiring within 5 years
Most-cited patents
| Patent | Title | Area | Cited by | Status |
|---|---|---|---|---|
| US5900173A | Food warming apparatus | Human Necessities | 76 | Expired |
| US7132926B2 | Smart tray system and method for restaurant inventory management | Physics | 68 | Expired |
| US6412403B1 | Apparatus and method for maintaining cooked food in a ready-to-serve condition using a freestanding cover for food trays | Human Necessities | 58 | Expired |
| US7800023B2 | Conveyor oven with hybrid heating sources | Human Necessities | 55 | Active |
| US6637322B2 | Apparatus for maintaining cooked food in a ready-to-serve condition using a freestanding cover for food trays | Human Necessities | 54 | Expired |
| US6116154A | Food pan management system in food warming apparatus | Human Necessities | 52 | Expired |
| US6878391B2 | Method for maintaining cooked food in a ready-to-serve condition using a freestanding cover for food trays | Human Necessities | 47 | Expired |
| US6884451B2 | Method for maintaining cooked food in a ready-to-serve condition using a freestanding cover for food trays | Human Necessities | 47 | Expired |
| US5323931A | Dispenser for extrudable material including dispensing from collapsible containers | Performing Operations; Transporting | 38 | Expired |
| USD364530S | Food warmer | General | 38 | Expired |
| US7258064B2 | Food product timing system | Human Necessities | 37 | Expired |
| USD523198S1 | Grill scraper | General | 36 | Expired |
| US8096231B2 | Apparatus and method for maintaining cooked food in a ready-to-use condition | Emerging Cross-Sectional Technologies | 36 | Active |
| US5186097A | Fryer controller | Human Necessities | 35 | Expired |
| US8522675B2 | Holding cabinet for separately heating food trays | Human Necessities | 35 | Active |
| US8166871B2 | Food product steamer | Human Necessities | 32 | Active |
| US7858906B2 | Apparatus and method for maintaining cooked food in a ready-to-use condition | Human Necessities | 32 | Active |
| US8091472B2 | Post-supported covers for food trays | Human Necessities | 31 | Active |
| USD523601S1 | Grill scraper | General | 29 | Expired |
| US6871377B2 | Grill scraper | Human Necessities | 29 | Expired |
| US7381927B1 | Oven for cooking cone-shaped foods | Performing Operations; Transporting | 28 | Active |
| US4254678A | Safety guard for food slicer | Emerging Cross-Sectional Technologies | 28 | Expired |
| US7628107B2 | Food product timing system | Human Necessities | 27 | Active |
| USD716095S1 | Food warmer | General | 26 | Active |
| USD609958S1 | Conveyor toaster | General | 24 | Expired |
Source: USPTO / EPO open patent data. Counts and citation impact are objective bibliographic measures.