Inventor
Fereydoun Gharadjedaghi
Inventor
Neuchatel, CH
Overview
Patents· 7 as inventor
Public. Assignee & technology derived from the patent record. Each patent links to its LexDana page.
G02Fprimary
G02FOptical devices or arrangements for the control of light by modification of the optical properties of the media of the elements involved therein55%
G04GElectronic time-pieces18%
G09GArrangements or circuits for control of indicating devices using static means to present variable information9%
Y10STechnical subjects covered by former uspc cross-reference art collections [xracs] and digests9%
Y10TTechnical subjects covered by former us classification9%
PatentTitleYear
4,545,649'Electro-optical display device of point matrix type'19854,488,818'Watch with an analog display device the dial of which is formed by a liquid crystal display cell'19844,281,903'Electro-optic passive display cell'19814,277,144'Electro-optic passive display cell'19814,232,946'Liquid crystal alignment layers'19804,207,671'Method of manufacture of a passive electro-optic display cell having an helicoidal nematic liquid crystal and passive electro-optic display cell obtained by carrying out this method'19804,139,272'Electro-optic passive display device'1979Career & activity timeline
Assembled from patent assignee/location history and declaration credentials.
1979–1981Patents assigned to EBAUCHES SA (5)· patent assignee history
1979–1985Based in Neuchatel, CH· patent location history
1984Patents assigned to ASULAB SA (1)· patent assignee history
1985Patents assigned to ASULAB S A ETA 72 (1)· patent assignee history
Inventor activity
Assignee and location history derived from the patent record.
Assignees
| Assignee | Patents | Span |
|---|---|---|
| EBAUCHES SA | 5 | 1979–1981 |
| ASULAB S A ETA 72 | 1 | 1985 |
| ASULAB SA | 1 | 1984 |
Locations
| Location | Patents | Span |
|---|---|---|
| Neuchatel, CH | 7 | 1979–1985 |