Schubert & Salzer
99Patents
0Active
99Granted
36Portfolio score
Filing activity: Jun 10, 1976 → Dec 16, 1991
Most-cited patents
| Patent | Title | Area | Cited by | Status |
|---|---|---|---|---|
| US4489756A | Sliding gate fluid control valve | Emerging Cross-Sectional Technologies | 42 | Expired |
| US4643226A | Slide gate valve | Emerging Cross-Sectional Technologies | 30 | Expired |
| US4676059A | Process and device for starting spinning on an open-end spinning apparatus | Textiles; Paper | 25 | Expired |
| US4600817A | Apparatus for guiding flexible supply lines | Mechanical Engineering; Lighting; Heating | 21 | Expired |
| US4083171A | Method and apparatus for eliminating an abnormality in a thread to be wound onto the bobbin of an open-end spinning device | Textiles; Paper | 19 | Expired |
| US4644742A | Process and device for joining a thread in an open-end spinning device | Textiles; Paper | 17 | Expired |
| US4137487A | Method and device for automatically leveling fleeces, slivers, rovings and the like by drawing | Textiles; Paper | 16 | Expired |
| US4195345A | Method and apparatus for detecting the faulty working of spinning units of open-end spinning machines | Physics | 15 | Expired |
| US4223517A | Method and mechanism for elimination of an irregularity in a yarn | Textiles; Paper | 14 | Expired |
| US4773210A | Open-end rotor-spinning device | Textiles; Paper | 14 | Expired |
| US4154409A | Method and device for securing a reserve winding on a tube | Performing Operations; Transporting | 14 | Expired |
| US4135276A | Apparatus for removing impurities from fibrous material | Textiles; Paper | 14 | Expired |
| US4136911A | Apparatus for feeding a card with fiber material | Textiles; Paper | 13 | Expired |
| US4246748A | Method and apparatus for detecting the faulty operation of spinning units open-end spinning machines | Physics | 13 | Expired |
| US4319449A | Open end spinning rotor comprising a main body and a rotor body | Textiles; Paper | 13 | Expired |
| US4877059A | Valve | Emerging Cross-Sectional Technologies | 13 | Expired |
| US4201037A | Method and apparatus for cleaning fibrous material | Textiles; Paper | 12 | Expired |
| US4356692A | Method and apparatus for removing an irregularity in a thread | Performing Operations; Transporting | 12 | Expired |
| US4345356A | Mechanism for eliminating impurities from fibrous material, in particular cotton | Textiles; Paper | 12 | Expired |
| US4687148A | Apparatus and process for forming a thread-reserve winding | Performing Operations; Transporting | 11 | Expired |
| US4265083A | Process and apparatus for individual piecing up of single open end spinning apparatus | Textiles; Paper | 11 | Expired |
| US4170101A | Method and apparatus for piecing an entwined yarn | Textiles; Paper | 11 | Expired |
| US4132056A | Open end spinning apparatus | Performing Operations; Transporting | 10 | Expired |
| US4700431A | Process and apparatus for eliminating dust from fiber material | Textiles; Paper | 10 | Expired |
| US4162556A | Process and apparatus for removal of trash deposits on open-end spinning machine | Textiles; Paper | 10 | Expired |
Source: USPTO / EPO open patent data. Counts and citation impact are objective bibliographic measures.