Inventor
Fritz Hammon
Inventor
Frankenthal, DE
Overview
Patents· 7 as inventor
Public. Assignee & technology derived from the patent record. Each patent links to its LexDana page.
G11Bprimary
G11BInformation storage based on relative movement between record carrier and transducer33%
Y10STechnical subjects covered by former uspc cross-reference art collections [xracs] and digests17%
Y10TTechnical subjects covered by former us classification17%
B05CApparatus for applying fluent materials to surfaces, in general6%
B05DProcesses for applying fluent materials to surfaces, in general6%
B65HHandling thin or filamentary material, e.g. sheets, webs, cables6%
G01BMeasuring length, thickness or similar linear dimensions6%
G01RMeasuring electric variables6%
G07DHandling of coins or valuable papers, e.g. testing, sorting by denominations, counting, dispensing, changing or depositing6%
PatentTitleYear
4,868,017'Structure-free application of dispersions to flexible base materials'19894,367,951'Process and apparatus for the surface analysis of flexible materials'19834,243,059'Method and device for determining the homogeneity of magnetic dispersions'19814,212,903'Improving the magnetic properties of gamma-iron (III) oxide'19804,200,678'Flexible multilayer magnetic recording medium'19804,109,046'Flexible multi-layer magnetic recording media'19784,037,259'Method and equipment for switching the operating conditions of a tape-recorder'1977Career & activity timeline
Assembled from patent assignee/location history and declaration credentials.
1977–1989Patents assigned to BASF AG (7)· patent assignee history
1977–1980Based in Ludwigshafen, DE· patent location history
1978–1989Based in Frankenthal, DE· patent location history
Inventor activity
Assignee and location history derived from the patent record.
Assignees
| Assignee | Patents | Span |
|---|---|---|
| BASF AG | 7 | 1977–1989 |
Locations
| Location | Patents | Span |
|---|---|---|
| Frankenthal, DE | 5 | 1978–1989 |
| Ludwigshafen, DE | 2 | 1977–1980 |