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Werner Siebert

This inventor holds 8 USPTO granted patents. Top assignees: Bergwerksverband Gmbh, Didier Engineering Gmbh. Active years: 1977-1983.

USPTO Granted Patents = 8

% Patents Active = 100.0

Average Co-Inventor Count = 3.8

ph-index = 4

Forward Citations = 29(Granted Patents)

Company Filing History:

Bergwerksverband Gmbh

Didier Engineering Gmbh

where one patent can have more than one assignee

Years Active: 1977-1983

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8 patents (USPTO):Sort by Forward CitationsExplore Patents

1. 4380125 - Method of and apparatus for drying and preheating coking coal in a (1983-04-19),

2. 4321112 - Device for opening, closing and cleaning fill holes of coke oven (1982-03-23),

3. 4309253 - Method and apparatus for tar recovery from raw coking gas (1982-01-05),

4. 4203803 - Charging of coke ovens with preheated coal (1980-05-20),

5. 4058230 - Arrangement for pneumatically regulating the introduction of substances (1977-11-15),

6. 4055471 - Method of restricting the formation of dust when feeding coal into coke (1977-10-25),

7. 4049141 - Method of charging a plurality of coking ovens (1977-09-20),

8. 4030983 - Method of restricting dust development when feeding coal into coke ovens (1977-06-21),

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Profile summary based on public USPTO records.

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