Rolf Schaefer
35Patents
9h-index
49Co-inventors
75Inventor score
Filing activity: Aug 1, 1984 → Aug 18, 2020
Most-cited inventions
| Patent | Title | Area | Cited by | Status |
|---|---|---|---|---|
| US7957144B2 | Heat exchange system for blade server systems and method | Electricity | 48 | Active |
| US4557796A | Method of dry copper etching and its implementation | Electricity | 31 | Expired |
| US6199160A | Computer system and method for performing multiple tasks | Physics | 17 | Expired |
| US7710113B2 | Magnetic sensor with offset magnetic field | Physics | 16 | Active |
| US8110119B2 | Method of manufacturing a magnetic sensor with tilted magnetoresistive structures | Physics | 16 | Active |
| US7505233B2 | Magnetic sensor | Physics | 15 | Active |
| US7492554B2 | Magnetic sensor with tilted magnetoresistive structures | Physics | 11 | Active |
| US4631203A | Latent imaging and developer system | Performing Operations; Transporting | 11 | Expired |
| US7569131B2 | Method for producing multiple magnetic layers of materials with known thickness and composition using a one-step electrodeposition process | Physics | 9 | Expired |
| US4569743A | Method and apparatus for the selective, self-aligned deposition of metal layers | Electricity | 7 | Expired |
| US5049315A | Polycarboxylic acid imidazolines, process for the preparation thereof and cleaning agents containing them | Chemistry; Metallurgy | 6 | Expired |
| US7629789B2 | Reorientation of magnetic layers and structures having reoriented magnetic layers | Emerging Cross-Sectional Technologies | 5 | Active |
| US7208948B2 | Non-contact, high resolution magnetic sensor system | Physics | 4 | Expired |
| US5151522A | Process for preparing polycarboxylic acid imidazolines by condensation reaction | Chemistry; Metallurgy | 4 | Expired |
| US7924534B2 | Magnetic sensor | Physics | 4 | Active |
| US7355399B2 | Non-contact sensor system | Physics | 3 | Active |
| US7474094B2 | Reorientation of magnetic layers and structures having reoriented magnetic layers | Emerging Cross-Sectional Technologies | 2 | Active |
| US10803535B2 | Facilitating power transactions | Physics | 2 | Active |
| US10235068B2 | Object synchronization in a clustered system | Electricity | 2 | Active |
| US7504824B2 | Magnetic sensor with offset magnetic field | Physics | 2 | Expired |
| US11921674B2 | Data compression by using cognitive created dictionaries | Physics | 1 | Active |
| US9189625B2 | Data management of potentially malicious content | Physics | 1 | Active |
| US7612555B2 | High-resolution magnetic encoder | Emerging Cross-Sectional Technologies | 1 | Expired |
| US8274277B2 | High-resolution magnetic encoder | Emerging Cross-Sectional Technologies | 0 | Active |
| US8718278B2 | Method and system for encryption of a datastream | Electricity | 0 | Active |
Source: USPTO / EPO open patent data. Inventor disambiguation is heuristic; counts are objective bibliographic measures.