Willi Studer AG
Regensdorf, CH· latest recorded location
Willi Studer AG is named on 23 US grants and 0 published applications in this corpus. Its most frequent classification is G11B (Information storage based on relative movement between record carrier and transducer).
- Granted patents
- 23
- Published applications
- 0
- Inventors
- 21
- Granted in 2026 so far
- 0
- Most recent grant
- 28 Jul 1992
Filings by year
| Year | Granted patents | Published applications |
|---|---|---|
| 1985 | 1 | 0 |
| 1986 | 6 | 0 |
| 1987 | 4 | 0 |
| 1988 | 2 | 0 |
| 1989 | 5 | 0 |
| 1990 | 4 | 0 |
| 1991 | 0 | 0 |
| 1992 | 1 | 0 |
By publication year.
Technology areas
Share of 23 documents
- G11BInformation storage based on relative movement between record carrier and transducer13
- A61BMedical diagnosis and surgery2
- H02PControl or regulation of electric motors, electric generators or dynamo-electric converters2
- H03HImpedance networks2
- H03MCoding2
- H04LDigital communication2
- Y10STechnical subjects covered by former uspc cross-reference art collections [xracs] and digests2
- G01PMeasuring linear or angular speed, acceleration, deceleration, or shock1
- G01RMeasuring electric variables1
- G04FTime-interval measuring1
Recent patents
- Magnetic storage medium containing at least two different populations of magnetic particles each population having a separate mean coercive field strength28 Jul 1992US 5,134,041 A
- Magnetic system for dynamic loudspeaker25 Dec 1990US 4,980,921 A
- Method of, and apparatus for, identifying a predetermined location within a data sequence on a record carrier for processing the data sequence19 Jun 1990US 4,935,823 A
- Process and apparatus for processing signals from a physiologically produced electric field8 May 1990US 4,922,920 A
- Method of, and apparatus for, processing distorted pulsed signals13 Mar 1990US 4,908,771 A
No published applications.
Most cited
By later US patents
- Method of recording odd and even words of one channel PCM signals in plural tracks49US 4,622,598 A1986
- Method and apparatus for measuring the time difference between two sampling times31US 4,564,918 A1986
- Method for determining the starting point and the end point of closed spatial signal patterns25US 4,700,712 A1987
- Method and apparatus for converting an input scanning sequence into an output scanning sequence24US 4,825,398 A1989
- Scanning frequency synchronization method and apparatus20US 4,780,892 A1988