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Cologne, Germany

Peter Ziemek

This inventor holds 5 USPTO granted patents. Top assignee: Bayer Aktiengesellschaft. Active years: 1976-1981.

USPTO Granted Patents = 5

% Patents Active = 100.0

Average Co-Inventor Count = 2.1

ph-index = 4

Forward Citations = 42(Granted Patents)

Company Filing History:

5 out of 12,223

Bayer Aktiengesellschaft

Years Active: 1976-1981

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5 patents (USPTO):Sort by Forward CitationsExplore Patents

1. 4292255 - Process for the preparation of organic polyisocyanates containing urea (1981-09-29),

2. 4264519 - Process for the preparation of organic polyisocyanates containing biuret (1981-04-28),

3. 4089901 - Process for converting polyaminopolyaryl-methanes into (1978-05-16),

4. 4083870 - Process for converting polyaminopolyaryl-methanes into (1978-04-11),

5. 3981869 - Process for the preparation of heterocyclic compounds (1976-09-21),

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