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Aschheim, Germany

Erhard Lehmann

USPTO Granted Patents = 3

Average Co-Inventor Count = 1.8

ph-index = 2

Forward Citations = 15(Granted Patents)

Location History:

Munich, DE (1979)
Aschheim, DE (1981 - 1989)

Company Filing History:

3 out of 30,045

Siemens Aktiengesellschaft

Years Active: 1979-1989

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3 patents (USPTO):Sort by Forward CitationsExplore Patents

1. 4825272 - Semiconductor power switch with thyristor (1989-04-25),

2. 4255675 - Circuit arrangement for reducing the recovery time of a thyristor (1981-03-10),

3. 4158850 - Thyristor having improved cooling and improved high frequency operation (1979-06-19),

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