Norbert Feistel
22Patents
7h-index
4Co-inventors
62Inventor score
Filing activity: Sep 30, 1992 → Dec 21, 2021
Most-cited inventions
| Patent | Title | Area | Cited by | Status |
|---|---|---|---|---|
| US6457722B1 | Sealing element for dry running systems and the use of a sealing element of this kind | Mechanical Engineering; Lighting; Heating | 24 | Expired |
| US6322080A | Sealing arrangement | Mechanical Engineering; Lighting; Heating | 24 | Expired |
| US6045135A | Sealing ring disk | Emerging Cross-Sectional Technologies | 18 | Expired |
| US6378875B1 | Sealing ring | Mechanical Engineering; Lighting; Heating | 17 | Expired |
| US7815193B2 | Dry-running piston rod sealing arrangement, and method for sealing a piston rod using one such arrangement | Mechanical Engineering; Lighting; Heating | 12 | Active |
| US9133933B1 | Piston ring | Mechanical Engineering; Lighting; Heating | 9 | Active |
| US6267380A | Choke arrangement and a method for operating said choke arrangement | Mechanical Engineering; Lighting; Heating | 9 | Expired |
| US5347915A | Piston compressor for the oilfree compression of gases | Mechanical Engineering; Lighting; Heating | 6 | Expired |
| US6367808B1 | Sealing ring for a dry running piston rod | Emerging Cross-Sectional Technologies | 5 | Expired |
| US6357755B1 | Sealing elements for dry running piston compressors | Emerging Cross-Sectional Technologies | 4 | Expired |
| US10359116B2 | Dry-running piston rod packing and method for operating a dry-running piston rod packing | Mechanical Engineering; Lighting; Heating | 3 | Active |
| US9234479B2 | Oil scraper ring | Mechanical Engineering; Lighting; Heating | 3 | Active |
| US8985588B2 | Seal arrangement | Mechanical Engineering; Lighting; Heating | 2 | Active |
| US11193587B2 | Piston ring for a piston compressor, and piston compressor | Mechanical Engineering; Lighting; Heating | 2 | Active |
| US11852243B2 | Method and device for monitoring the condition of a piston rod sealing system of a piston compressor | Mechanical Engineering; Lighting; Heating | 1 | Active |
| US9810175B2 | Oil scraper ring | Mechanical Engineering; Lighting; Heating | 1 | Active |
| US10077842B2 | Sealing ring | Mechanical Engineering; Lighting; Heating | 1 | Active |
| US11698062B2 | Oil wiper packing | Mechanical Engineering; Lighting; Heating | 1 | Active |
| US10364894B2 | Sealing assembly and method for the operation thereof | Mechanical Engineering; Lighting; Heating | 0 | Active |
| US12297826B2 | Throttle arrangement for piston compressors | Mechanical Engineering; Lighting; Heating | 0 | Active |
| US12196316B2 | Throttle ring | Mechanical Engineering; Lighting; Heating | 0 | Active |
| US12209670B2 | Piston ring for a piston compressor | Mechanical Engineering; Lighting; Heating | 0 | Active |
Source: USPTO / EPO open patent data. Inventor disambiguation is heuristic; counts are objective bibliographic measures.