Inventor

Rene Viennet

Inventor

Neuchatel, CH

Overview

8→

Patents

1979–2006

Patent span

Physics

Primary field (CPC G)

Patents· 8 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 therein33%

G04CElectromechanical clocks or watches20%

G04GElectronic time-pieces13%

G04BMechanically-driven clocks or watches7%

H10FInorganic semiconductor devices sensitive to infrared radiation, light, electromagnetic radiation of shorter wavelength or corpuscular radiation7%

Y02EReduction of greenhouse gas [ghg] emissions, related to energy generation, transmission or distribution7%

Y10STechnical subjects covered by former uspc cross-reference art collections [xracs] and digests7%

Y10TTechnical subjects covered by former us classification7%

PatentTitleYear

7,038,975'Luminous hands and display device including the same, particularly in a timepiece'2006 6,459,035'Photovoltaic cell having a colored appearance, particularly for a watch dial'2002 5,572,489'Timepiece with rotatable outer ring'1996 4,277,144'Electro-optic passive display cell'1981 4,207,671'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'1980 4,183,628'Electronic watch and display device for such watch'1980 4,139,279'Electronic instrument'1979 4,139,272'Electro-optic passive display device'1979

Career & activity timeline

Assembled from patent assignee/location history and declaration credentials.

1979–1981Patents assigned to EBAUCHES SA (5)· patent assignee history

1979–2006Based in Neuchatel, CH· patent location history

1996–2006Patents assigned to ASULAB SA (3)· patent assignee history

2002Based in Neuchtel, CH· patent location history

Inventor activity

Assignee and location history derived from the patent record.

Assignees

Assignee	Patents	Span
EBAUCHES SA	5	1979–1981
ASULAB SA	3	1996–2006

Locations

Location	Patents	Span
Neuchatel, CH	7	1979–2006
Neuchtel, CH	1	2002