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Cologne, Germany

Erhard Schellmann

This inventor holds 6 USPTO granted patents. Top assignee: Bayer Aktiengesellschaft. Active years: 1978-1981.

USPTO Granted Patents = 6

% Patents Active = 100.0

Average Co-Inventor Count = 3.8

ph-index = 5

Forward Citations = 60(Granted Patents)

Company Filing History:

6 out of 12,223

Bayer Aktiengesellschaft

Years Active: 1978-1981

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6 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. 4261918 - Process for the preparation of chloroformic acid methyl ester (1981-04-14),

4. 4096738 - Method for testing filled glass containers (1978-06-27),

5. 4092089 - Apparatus for the preparation of melt-sprayed spherical phenacetin (1978-05-30),

6. 4086346 - Preparation of melt-sprayed spherical phenacetin granules (1978-04-25),

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