Inventor
Hartwig Schaper
Inventor
Aschaffenburg, DE
Overview
Patents· 8 as inventor
Public. Assignee & technology derived from the patent record. Each patent links to its LexDana page.
C03Bprimary
C03BManufacture, shaping, or supplementary processes29%
F21KNon-electric light sources using luminescence14%
A61KPreparations for medical, dental or toiletry purposes7%
B01JChemical or physical processes, e.g. catalysis or colloid chemistry7%
C01PIndexing scheme relating to structural and physical aspects of solid inorganic compounds7%
C03CChemical composition of glasses, glazes or vitreous enamels7%
C04BLime, magnesia7%
C09CTreatment of inorganic materials, other than fibrous fillers, to enhance their pigmenting or filling properties7%
G01NInvestigating or analysing materials by determining their chemical or physical properties7%
Y02PClimate change mitigation technologies in the production or processing of goods7%
PatentTitleYear
7,089,765'Method of making a jacketed preform for optical fibers using OVD'20066,321,573'Process and apparatus for manufacturing a porous SiO2 preform'20016,047,564'Method of producing quartz glass bodies'20005,643,347'Process for manufacture of silica granules'19975,429,653'Method of partially introverting a multiple layer tube to form an optical fiber preform'19954,782,265'Electrochemical luminescent cell'19884,431,919'Detection apparatus, particularly for use in liquid chromatography'19844,422,006'Electrochemical luminescent cell'1983Career & activity timeline
Assembled from patent assignee/location history and declaration credentials.
1983–1988Patents assigned to PHILIPS CORP (3)· patent assignee history
1983–1988Based in Roetgen, DE· patent location history
1984Based in Rotgen, DE· patent location history
1995–2001Patents assigned to HERAEUS QUARZGLAS (4)· patent assignee history
1995–2006Based in Aschaffenburg, DE· patent location history
2006Patents assigned to FURUKAWA ELECTRIC NORTH AM INC (1)· patent assignee history
Inventor activity
Assignee and location history derived from the patent record.
Assignees
| Assignee | Patents | Span |
|---|---|---|
| HERAEUS QUARZGLAS | 4 | 1995–2001 |
| PHILIPS CORP | 3 | 1983–1988 |
| FURUKAWA ELECTRIC NORTH AM INC | 1 | 2006 |
Locations
| Location | Patents | Span |
|---|---|---|
| Aschaffenburg, DE | 5 | 1995–2006 |
| Roetgen, DE | 2 | 1983–1988 |
| Rotgen, DE | 1 | 1984 |