Issued Patents 2019
Showing 1–6 of 6 patents
| Patent # | Title | Co-Inventors | Date |
|---|---|---|---|
| 10470630 | Vacuum cleaner robot | Ralf Sauer | 2019-11-12 |
| 10307030 | Holding plate for a vacuum cleaner filter bag | Ralf Sauer | 2019-06-04 |
| 10264936 | Vacuum cleaner filter bag having a high-strength weld seam, method for producing said vacuum cleaner filter bag, and ultrasonic welding system for producing an ultra-strong weld seam | Ralf Sauer | 2019-04-23 |
| 10188248 | Vacuum cleaner filter bag | Ralf Sauer | 2019-01-29 |
| 10182691 | Vacuum cleaner filter bag | Ralf Sauer | 2019-01-22 |
| 10178932 | Vacuum cleaner filter bag | Ralf Sauer | 2019-01-15 |