Inventor
Friedrich Esper
Inventor
Leonberg, DE
Overview
Patents· 18 as inventor
Public. Assignee & technology derived from the patent record. Each patent links to its LexDana page.
C04Bprimary
C04BLime, magnesia11%
G01NInvestigating or analysing materials by determining their chemical or physical properties11%
A61FFilters implantable into blood vessels9%
A61LMethods or apparatus for sterilising materials or objects in general6%
C22CAlloys6%
F02BInternal-combustion piston engines6%
H01FMagnets6%
Y10STechnical subjects covered by former uspc cross-reference art collections [xracs] and digests6%
B03CMagnetic or electrostatic separation of solid materials from solid materials or fluids3%
B32BLayered products, i.e. products built-up of strata of flat or non-flat, e.g. cellular or honeycomb, form3%
PatentTitleYear
5,194,099'Sinter magnet based on Fe-Nd-B'19934,618,351'Device for cleaning of gases'19864,539,503'Rapid-heating, high-temperature-stable spark plug for internal combustion engines'19854,535,487'Endoprosthesis shaft'19854,533,392'High strength sintered alloy'19854,532,492'Temperature-compensated, oxygen-content gas sensor'19854,503,348'Magnetic transducer'19854,418,661'Glow plug, particularly for diesel engine'19834,356,571'Prosthetic device'19824,339,320'Heated gas composition sensor structure'19824,334,974'Electrochemical oxygen sensor, particularly for use with exhaust gases of internal combustion engines, and especially for polarographic application'19824,320,080'Method to manufacture soft magnetic pressed bodies'19824,268,468'Method of making a medical prosthesis'19814,221,650'Solid electrolyte oxygen sensors'19804,183,798'Stabilized zirconium dioxide compositions and oxygen sensors utilizing said compositions'19804,128,420'High-strength iron-molybdenum-nickel-phosphorus containing sintered alloy'19784,019,914'Method of manufacturing .alpha.-alumina'19773,959,002'Method of manufacturing white furnace boats for firing ceramic articles and novel furnace boats'1976Career & activity timeline
Assembled from patent assignee/location history and declaration credentials.
1976–1986Patents assigned to BOSCH GMBH ROBERT (17)· patent assignee history
1976–1993Based in Leonberg, DE· patent location history
1993Patents assigned to 502 ROBERT BOSCH GMBH (1)· patent assignee history
1993Patents assigned to MAX PLANCK GESELLSCHAFT (1)· patent assignee history
Inventor activity
Assignee and location history derived from the patent record.
Assignees
| Assignee | Patents | Span |
|---|---|---|
| BOSCH GMBH ROBERT | 17 | 1976–1986 |
| 502 ROBERT BOSCH GMBH | 1 | 1993 |
| MAX PLANCK GESELLSCHAFT | 1 | 1993 |
Locations
| Location | Patents | Span |
|---|---|---|
| Leonberg, DE | 18 | 1976–1993 |