LANGENSTEIN & SCHEMANN GMBH
🏢 View company profile →21Patents
10Active
21Granted
40Portfolio score
Filing activity: Dec 11, 1975 → Oct 7, 2022 · 1 expiring within 5 years
Most-cited patents
| Patent | Title | Area | Cited by | Status |
|---|---|---|---|---|
| US4831861A | Hydraulic cold extrusion press | Performing Operations; Transporting | 9 | Expired |
| US4014198A | Drive mechanism of a pair of forging or stretching rollers | Performing Operations; Transporting | 6 | Expired |
| US7469568B2 | Device for handling a workpiece during a shaping process | Performing Operations; Transporting | 5 | Expired |
| US7010952B2 | Device for holding at least one roller of a rolling machine | Performing Operations; Transporting | 4 | Expired |
| US4286454A | Apparatus for forging shaft flanges | Performing Operations; Transporting | 3 | Expired |
| US7444850B2 | Method and device for shaping workpieces | Emerging Cross-Sectional Technologies | 2 | Expired |
| US7350389B2 | Method and device for reshaping a work piece with automatic handling | Performing Operations; Transporting | 1 | Expired |
| US10293398B2 | Forming machine, in particular a forging hammer | Electricity | 1 | Active |
| US7406853B2 | Rolling machine and method thereof | Performing Operations; Transporting | 1 | Active |
| US7278288B2 | Method and device for transferring a workpiece | Performing Operations; Transporting | 1 | Expired |
| US9180642B2 | Machine bed, method for the operation of a forming machine and forming installation | Performing Operations; Transporting | 1 | Active |
| US7415856B2 | Method and device for shaping and then lifting a workpiece | Performing Operations; Transporting | 0 | Expired |
| US10967418B2 | Shaping device, in particular a spindle press, and method for shaping workpieces | Performing Operations; Transporting | 0 | Active |
| US9457393B2 | Forming machine for forging, in particular, stretch-forging, workpieces | Performing Operations; Transporting | 0 | Active |
| US9889621B2 | Press and method for pressing workpieces | Performing Operations; Transporting | 0 | Active |
| US3992920A | Wedge press | Performing Operations; Transporting | 0 | Expired |
| US12128470B2 | Production system, production module, method for operating and setting up a production line, and method for producing a workpiece | Physics | 0 | Active |
| US12420329B2 | Forging machine with prestressed concrete machine frame | Fixed Constructions | 0 | Active |
| US7225656B2 | Process for forming a workpiece and rolling machine | Performing Operations; Transporting | 0 | Expired |
| US10875082B2 | Forming machine, in particular forging hammer, and method for controlling a forming machine | Performing Operations; Transporting | 0 | Active |
| US11097334B2 | Forging hammer having an electric linear drive | Performing Operations; Transporting | 0 | Active |
Source: USPTO / EPO open patent data. Counts and citation impact are objective bibliographic measures.