Ernst Fehrer
42Patents
11h-index
2Co-inventors
65Inventor score
Filing activity: Apr 10, 1975 → May 12, 1998
Most-cited inventions
| Patent | Title | Area | Cited by | Status |
|---|---|---|---|---|
| US4953349A | Apparatus for making a yarn | Textiles; Paper | 29 | Expired |
| US4107909A | Apparatus for spinning textile fibers | Textiles; Paper | 25 | Expired |
| US4249368A | Apparatus for manufacturing a yarn | Textiles; Paper | 24 | Expired |
| US4327545A | Apparatus for making a yarn | Textiles; Paper | 22 | Expired |
| US4334400A | Apparatus for making a yarn | Textiles; Paper | 20 | Expired |
| US3981137A | Method of spinning textile fibers | Textiles; Paper | 19 | Expired |
| US5511294A | Apparatus for needling a nonwoven web | Textiles; Paper | 19 | Expired |
| US5431005A | Drawing frame for a ring spinning apparatus | Textiles; Paper | 14 | Expired |
| US3972173A | Apparatus for producing spun yarn from textile fibers | Textiles; Paper | 13 | Expired |
| US5085046A | Process and apparatus for feeding at least two drawn rovings to respective ring spinning stations | Textiles; Paper | 13 | Expired |
| US4534086A | Apparatus for making fibrous webs | Textiles; Paper | 13 | Expired |
| US4109454A | Apparatus for twisting textile fibers | Textiles; Paper | 11 | Expired |
| US4070811A | Machine for spinning textile fibers | Textiles; Paper | 11 | Expired |
| US4583267A | Apparatus for making a fibrous web | Textiles; Paper | 10 | Expired |
| US4420928A | Apparatus for manufacturing a yarn | Textiles; Paper | 10 | Expired |
| US5148584A | Apparatus for needling a nonwoven web | Textiles; Paper | 10 | Expired |
| US5568678A | Apparatus for needling a nonwoven web along a circular path | Textiles; Paper | 9 | Expired |
| US5551134A | Apparatus with curved needle for needling a nonwoven web | Textiles; Paper | 9 | Expired |
| US5896633A | Method and device for needling a web | Textiles; Paper | 9 | Expired |
| US4524580A | Apparatus for making a yarn from a roving | Textiles; Paper | 9 | Expired |
| US5617714A | Drafting unit for a ring spinning device with two delivery rollers defining a delivery nip therebetween for a roving | Textiles; Paper | 7 | Expired |
| US5894643A | Device for needling a web | Textiles; Paper | 7 | Expired |
| US5813101A | Device for needling a prebonded web | Textiles; Paper | 6 | Expired |
| US4672800A | Process and apparatus for making a yarn | Textiles; Paper | 6 | Expired |
| US4067181A | Fiber-disintegrating unit for a spinning machine | Textiles; Paper | 6 | Expired |
Source: USPTO / EPO open patent data. Inventor disambiguation is heuristic; counts are objective bibliographic measures.