Inventor
Ralf Kersten
Inventor
Eppstein-Bremthal, DE
Overview
Patents· 24 as inventor
Public. Assignee & technology derived from the patent record. Each patent links to its LexDana page.
G02Bprimary
G02BOptical elements, systems or apparatus40%
G02FOptical devices or arrangements for the control of light by modification of the optical properties of the media of the elements involved therein11%
Y10STechnical subjects covered by former uspc cross-reference art collections [xracs] and digests9%
Y10TTechnical subjects covered by former us classification9%
C03CChemical composition of glasses, glazes or vitreous enamels7%
C23CCoating metallic material7%
C03BManufacture, shaping, or supplementary processes4%
Y02TClimate change mitigation technologies related to transportation4%
A61BDiagnosis2%
G06VImage or video recognition or understanding2%
PatentTitleYear
5,563,345'Device for ultrasonic identification of fingerprints'19965,480,687'Optical waveguide with a substantially planar substrate and process for its production'19965,369,722'Optical inorganic waveguide with a substantially planar organic substrate'19945,062,508'CVD coating process for producing coatings and apparatus for carrying out the process'19915,030,475'Plasma-enhanced CVD coating process'19915,017,404'Plasma CVD process using a plurality of overlapping plasma columns'19914,975,103'Process for producing a planar glass substrate coated with a dielectric layer system'19904,859,222'Method for the manufacture of a light wave guide'19894,851,025'Process for producing a planar optical waveguide'19894,765,819'Method for making planar lightwave guides'19884,756,734'Methods of making planar lightwave guides'19884,492,425'Device for deflecting light through 180 degrees'19854,220,619'Process for forming the connection between two groups of glass fibers'19804,165,225'Distributor for optical signals'19794,145,457'Method for the production of optical directional couplers'19794,142,877'Method for making output/input coupler for multi-mode glass fibers'19794,139,259'Light distributor for optical communication systems'19794,136,439'Method for the production of a light conductor structure with interlying electrodes'19794,134,640'Output/input coupler for multi-mode glass fibers'19794,103,987'Device for connecting two groups of glass fibers'19784,089,583'Method for making output/input coupler for multi-mode glass fibers'19784,080,244'Method for the production of a light conducting structure with interlying electrodes'19783,970,360'Wave-guide structure with a multi-layer system and methods for producing same'19763,936,142'Coupling arrangements between light conductive fibers and between light conductive fibers and terminal equipment'1976Career & activity timeline
Assembled from patent assignee/location history and declaration credentials.
1976–1985Patents assigned to SIEMENS AG (13)· patent assignee history
1976Based in Munich, DE· patent location history
1978–1980Based in Rottach-Egern, DE· patent location history
1985Based in Berlin, DE· patent location history
1988–1996Patents assigned to SCHOTT GLASWERKE (10)· patent assignee history
1988–1996Based in Eppstein-Bremthal, DE· patent location history
1989Based in Bayern, DE· patent location history
1994Patents assigned to HOFFMANN LAROCHE A G (1)· patent assignee history
1996Patents assigned to HOFFMANN LA ROCHE (1)· patent assignee history
1996Patents assigned to JENOPTIK JENA GMBH (1)· patent assignee history
Inventor activity
Assignee and location history derived from the patent record.
Assignees
| Assignee | Patents | Span |
|---|---|---|
| SIEMENS AG | 13 | 1976–1985 |
| SCHOTT GLASWERKE | 10 | 1988–1996 |
| HOFFMANN LA ROCHE | 1 | 1996 |
| HOFFMANN LAROCHE A G | 1 | 1994 |
| JENOPTIK JENA GMBH | 1 | 1996 |
Locations
| Location | Patents | Span |
|---|---|---|
| Eppstein-Bremthal, DE | 10 | 1988–1996 |
| Rottach-Egern, DE | 10 | 1978–1980 |
| Munich, DE | 2 | 1976 |
| Bayern, DE | 1 | 1989 |
| Berlin, DE | 1 | 1985 |