Erhardt & Leimer GmbH
35Patents
0Active
35Granted
37Portfolio score
Filing activity: Dec 17, 1975 → Aug 13, 2004
Most-cited patents
| Patent | Title | Area | Cited by | Status |
|---|---|---|---|---|
| US5133511A | Apparatus for the edge aligned connection of webs | Performing Operations; Transporting | 57 | Expired |
| US4053967A | Apparatus for flattening the bent-up edge of a sheet workpiece | Performing Operations; Transporting | 42 | Expired |
| US4848632A | Method for guiding a moving web of material | Performing Operations; Transporting | 40 | Expired |
| US5803334A | Ultrasonic edge sensor for the detection of a web edge | Physics | 29 | Expired |
| US4758716A | Apparatus for evaluating indicia on a moving carrier | Physics | 23 | Expired |
| US4197621A | Apparatus for flattening the bent-up edge of a sheet workpiece | Performing Operations; Transporting | 22 | Expired |
| US5021674A | Process for determining the location of edges and photoelectronic scanning device for scanning edges | Performing Operations; Transporting | 20 | Expired |
| US6450381B1 | Device and method for guiding a transversely stable material web | Performing Operations; Transporting | 17 | Expired |
| US5619779A | Device for smoothing down a running material web | Performing Operations; Transporting | 15 | Expired |
| US4329838A | Method and apparatus for detwisting cloth | Textiles; Paper | 14 | Expired |
| US5663510A | Method and device for compensating tension forces across the width of a moving web | Performing Operations; Transporting | 14 | Expired |
| US5166532A | Edge sensor for a moving strip of material | Physics | 13 | Expired |
| US4780631A | Device for the electronic control and regulation of machines | Emerging Cross-Sectional Technologies | 13 | Expired |
| US6348696B1 | Method and device for detecting the position of the edge of a moving material web | Performing Operations; Transporting | 12 | Expired |
| US4920622A | Apparatus for the spreading the guiding of a web of flexible material | Performing Operations; Transporting | 12 | Expired |
| US5921452A | Device for pivoting a roller for a moving web | Performing Operations; Transporting | 12 | Expired |
| US5307973A | Profiled rod for a web-spreading roller | Performing Operations; Transporting | 11 | Expired |
| US4760626A | Guiding and spreading device | Performing Operations; Transporting | 11 | Expired |
| US4606486A | Tilt-box control system | Performing Operations; Transporting | 10 | Expired |
| US6550656B2 | Device for spreading, compressing and guiding a running material web | Performing Operations; Transporting | 9 | Expired |
| US4760945A | Web-position controller | Performing Operations; Transporting | 9 | Expired |
| US6717168B2 | Device for detecting the marginal edge and marking of a moving web of material | Performing Operations; Transporting | 9 | Expired |
| US6474528B2 | Device for swiveling a rotary frame | Performing Operations; Transporting | 8 | Expired |
| US4330909A | Apparatus for flattening and guiding an elongated web | Textiles; Paper | 8 | Expired |
| US4532167A | Readable goods-marking system for textile processing | Emerging Cross-Sectional Technologies | 8 | Expired |
Source: USPTO / EPO open patent data. Counts and citation impact are objective bibliographic measures.