Growing community of inventors

Cologne, Germany

Frank Bartkowiak

Average Co-Inventor Count = 5.69

ph-index = 2

The patent ph-index is calculated by counting the number of publications for which an author has been cited by other authors at least that same number of times.

Forward Citations = 7

Frank BartkowiakHans Schulze (3 patents)Frank BartkowiakGunther Boehmke (2 patents)Frank BartkowiakKarlhans Jakobs (2 patents)Frank BartkowiakKlaus Walz (1 patent)Frank BartkowiakWolf-Dieter Schroer (1 patent)Frank BartkowiakWolfgang Wirth (1 patent)Frank BartkowiakKarl Reizlein (1 patent)Frank BartkowiakKlaus Wangermann (1 patent)Frank BartkowiakWilli Schossler (1 patent)Frank BartkowiakRolf-Jurgen Singer (1 patent)Frank BartkowiakHeinz-Otto Horstmann (1 patent)Frank BartkowiakUlrich Engelhardt (1 patent)Frank BartkowiakFrank Bartkowiak (3 patents)Hans SchulzeHans Schulze (13 patents)Gunther BoehmkeGunther Boehmke (29 patents)Karlhans JakobsKarlhans Jakobs (8 patents)Klaus WalzKlaus Walz (26 patents)Wolf-Dieter SchroerWolf-Dieter Schroer (15 patents)Wolfgang WirthWolfgang Wirth (11 patents)Karl ReizleinKarl Reizlein (7 patents)Klaus WangermannKlaus Wangermann (7 patents)Willi SchosslerWilli Schossler (7 patents)Rolf-Jurgen SingerRolf-Jurgen Singer (6 patents)Heinz-Otto HorstmannHeinz-Otto Horstmann (4 patents)Ulrich EngelhardtUlrich Engelhardt (3 patents)
..
Inventor’s number of patents
..
Strength of working relationships

Company Filing History:

1. Bayer Aktiengesellschaft (3 from 12,157 patents)


3 patents:

1. 5053421 - Di-styrl-phenyl-triglycol ether as crystallization inhibitor

2. 4994089 - Carrier mixture for the dyeing of polyester materials:

3. 4943299 - Levelling agents for disperse dyeing of polyester: ethoxylate or

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12/8/2025
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