Per Udden — 5 Patents at Unknown

Per Udden has been granted 5 US patents while listed as an inventor at Unknown. The first was granted in 1988 and the most recent in July 1997. Per Udden ranks #907,971 of 4,157,543 US inventors in our database (top 21.8%). Patent records list Per Udden in Sarnen, CH.

Issued Patents All Time

Showing 1–5 of 5 patents

Patent #	Title	Co-Inventors	Date
5645037	Ignition system for an internal combustion engine, particularly for use in a chain saw or the like	Per-Anders Chrintz-Gath	1997-07-08
5606958	Ignition system for an internal-combustion engine, particularly for use in a chain saw or the like	Per-Anders Chrintz-Gath	1997-03-04
5180907	Method and apparatus for the measurement of rapid light variation superimposed on a slowly changing background light intensity	Jan K. Ober	1993-01-19
4958925	Eye movement measurement device with multiple light emitting and detecting elements	Jan K. Ober	1990-09-25
4735498	Eye movement measuring apparatus	Jan K. Ober	1988-04-05

Per Udden — 5 Patents

Issued Patents All Time

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