Michael Schaefer
34Patents
7h-index
52Co-inventors
72Inventor score
Filing activity: Oct 5, 1978 → Nov 7, 2022
Most-cited inventions
| Patent | Title | Area | Cited by | Status |
|---|---|---|---|---|
| US4217962A | Hydraulically operated grade scraper | Fixed Constructions | 48 | Expired |
| USD572706S1 | Microphone | General | 30 | Expired |
| US9896566B2 | Laser activatable polymer composition | Electricity | 29 | Active |
| US4936551A | Fatty acid polyoxyalkyl ester sulfonates, a process for their production and their use as surfactants | Chemistry; Metallurgy | 15 | Expired |
| US5271033A | Induction furnace for melting and casting substances in a nonreactive atmosphere | Electricity | 10 | Expired |
| US5662554A | Neck exercise device | Human Necessities | 10 | Expired |
| USD572116S1 | Microphone clamp plate | General | 9 | Expired |
| US8917219B2 | RFID transponder antenna | Physics | 7 | Active |
| US5319117A | Process for the sulfonation of unsaturated fatty acid glycerol esters | Chemistry; Metallurgy | 7 | Expired |
| US7150319B2 | Method for reducing or completely eliminating water influx in an underground formation, and crosslinkable copolymers for implementing said method | Chemistry; Metallurgy | 5 | Expired |
| US10010958B2 | Soldering module | Performing Operations; Transporting | 3 | Active |
| US11612802B2 | Range-of-motion exercise device having an audible feedback mechanism | Human Necessities | 3 | Active |
| US4988091A | Elbow and forearm rehabilitation device | Human Necessities | 3 | Expired |
| US4893572A | Grain drill planting depth control | Human Necessities | 2 | Expired |
| US8121388B2 | Device and method for automatically determining the individual three-dimensional shape of particles | Physics | 1 | Active |
| US7696304B2 | Thermally stable water-soluble polymer which is crosslinkable at high temperatures | Chemistry; Metallurgy | 1 | Active |
| US5498162A | Method for demonstrating a lifting technique | Human Necessities | 1 | Expired |
| US8657618B2 | High-voltage connector component for a high-voltage cable, high-voltage connector, and method of manufacturing a high-voltage connector component | Electricity | 1 | Active |
| US9209567B2 | Clamping body for an electrical conductor | Electricity | 1 | Active |
| US8911270B2 | Clamping body for an electric conductor | Electricity | 1 | Active |
| US11959469B2 | Method for monitoring the state of a device and device | Mechanical Engineering; Lighting; Heating | 0 | Active |
| US11959468B2 | Apparatus for conveying thick matter | Mechanical Engineering; Lighting; Heating | 0 | Active |
| US7837796B2 | Process chamber, inline coating installation and method for treating a substrate | Chemistry; Metallurgy | 0 | Active |
| US10837898B2 | Sensor for a virtually simultaneous measurement of a transmission and/or forward scattering and/or remission and for a simultaneous measurement of the transmission and forward scattering or transmission and remission of a liquid sample | Physics | 0 | Active |
| US11267063B2 | Method for operating a soldering device, soldering device | Physics | 0 | Active |
Source: USPTO / EPO open patent data. Inventor disambiguation is heuristic; counts are objective bibliographic measures.