Joy Technologies Inc.
🏢 View company profile →31Patents
0Active
31Granted
38Portfolio score
Filing activity: Apr 3, 1986 → Jun 4, 1993
Most-cited patents
| Patent | Title | Area | Cited by | Status |
|---|---|---|---|---|
| US5088797A | Method and apparatus for holding a cutting bit | Fixed Constructions | 104 | Expired |
| US4915455A | Miner cutting bit holding apparatus | Fixed Constructions | 95 | Expired |
| US5302005A | Apparatus for holding a cutting bit | Fixed Constructions | 77 | Expired |
| US5106166A | Cutting bit holding apparatus | Fixed Constructions | 60 | Expired |
| US5011229A | Miner cutting bit holding apparatus | Fixed Constructions | 53 | Expired |
| US4828339A | Crawler chain | Performing Operations; Transporting | 33 | Expired |
| US5165766A | Tram chain connection link | Performing Operations; Transporting | 32 | Expired |
| US5000310A | Chain and flight conveyor | Performing Operations; Transporting | 31 | Expired |
| US4944560A | Miner cutting bit holding apparatus | Fixed Constructions | 30 | Expired |
| US5088594A | Chain and flight conveyor | Performing Operations; Transporting | 27 | Expired |
| US4828327A | Bit holder for miner | Fixed Constructions | 26 | Expired |
| US4917232A | Flexible conveyor belt supporting structure | Performing Operations; Transporting | 26 | Expired |
| US5156256A | Elevated auxiliary conveying apparatus | Fixed Constructions | 25 | Expired |
| US5004098A | Conveyor belt | Emerging Cross-Sectional Technologies | 21 | Expired |
| US4865185A | Crawler-mounted conveying train | Fixed Constructions | 20 | Expired |
| US4773528A | Material transfer unit for ground-mounted FCT | Fixed Constructions | 18 | Expired |
| US4856384A | Roof bolt drill pot drive | Fixed Constructions | 17 | Expired |
| US5161670A | Auxiliary conveying apparatus for elevationally selectable discharge | Fixed Constructions | 15 | Expired |
| US5163545A | Auxiliary conveying apparatus for use with mobile articulated conveyors | Performing Operations; Transporting | 15 | Expired |
| US5026218A | Temporary roof support cylinder | Fixed Constructions | 14 | Expired |
| US4817908A | Seat suspension for underground mining machines | Performing Operations; Transporting | 14 | Expired |
| US4919252A | Chain conveyor for miner | Fixed Constructions | 13 | Expired |
| US5254047A | Chain take-up apparatus | Emerging Cross-Sectional Technologies | 13 | Expired |
| US4932481A | Roof bolt drill support | Fixed Constructions | 13 | Expired |
| US4865184A | Chain conveyor drive | Performing Operations; Transporting | 13 | Expired |
Source: USPTO / EPO open patent data. Counts and citation impact are objective bibliographic measures.