Dorner Mfg. Corp.
72Patents
14Active
72Granted
52Portfolio score
Filing activity: Aug 14, 1980 → Oct 28, 2022 · 4 expiring within 5 years
Most-cited patents
| Patent | Title | Area | Cited by | Status |
|---|---|---|---|---|
| US5174435A | Conveyor construction | Performing Operations; Transporting | 48 | Expired |
| US5562796A | Heat press for joining the spliced ends of a conveyor belt | Performing Operations; Transporting | 46 | Expired |
| US6109427A | Conveyor construction | Performing Operations; Transporting | 46 | Expired |
| US5586685A | Apparatus for dispensing articles | Performing Operations; Transporting | 46 | Expired |
| US8042682B2 | Conveyor belt drive sprocket retention system | Performing Operations; Transporting | 38 | Active |
| US6422382B1 | Conveyor incorporating a modular frame construction | Performing Operations; Transporting | 30 | Expired |
| US5156260A | Conveyor construction having side rails with double longitudinal slots | Performing Operations; Transporting | 29 | Expired |
| US6298981A | Conveyor construction | Performing Operations; Transporting | 28 | Expired |
| US4865515A | Apparatus for unstacking and stacking containers | Emerging Cross-Sectional Technologies | 28 | Expired |
| US5984083A | Conveyor belt tensioning mechanism utilizing a manually operated cam-type tool | Performing Operations; Transporting | 24 | Expired |
| US4465177A | Elevator for a conveying system | Performing Operations; Transporting | 24 | Expired |
| US5002457A | Apparatus for storing stacks of articles and subsequently unstacking the articles and feeding the articles to working equipment | Emerging Cross-Sectional Technologies | 23 | Expired |
| US5875883A | Adjustable inclined conveyor | Performing Operations; Transporting | 21 | Expired |
| US6302638A | Combined pushing mechanism and dead plate for stacker accumulation tray | Performing Operations; Transporting | 20 | Expired |
| US4609091A | Storage unit for a conveyor system | Performing Operations; Transporting | 20 | Expired |
| US4487309A | Conveyor system | Performing Operations; Transporting | 19 | Expired |
| US6419782B1 | Bar code overlabeling system | Emerging Cross-Sectional Technologies | 18 | Expired |
| US6971509B2 | Endless belt conveyor frame and tensioning device including center drive construction | Performing Operations; Transporting | 17 | Expired |
| US5156261A | Articulated link construction for a conveyor belt tracking mechanism | Performing Operations; Transporting | 17 | Expired |
| US7681719B2 | Sanitary conveyor transfer tail assembly | Performing Operations; Transporting | 16 | Expired |
| US6871737B2 | Endless belt conveyor frame | Performing Operations; Transporting | 16 | Expired |
| US7549531B2 | Sanitary conveyor tip-up tail assembly | Performing Operations; Transporting | 16 | Expired |
| US4947981A | Apparatus for inverting articles | Performing Operations; Transporting | 16 | Expired |
| US5203447A | Drive mechanism for a conveyor | Performing Operations; Transporting | 15 | Expired |
| US6685009B1 | Continuous belt conveyor tensioning mechanism | Performing Operations; Transporting | 15 | Expired |
Source: USPTO / EPO open patent data. Counts and citation impact are objective bibliographic measures.