Growing community of inventors

Kronberg, Germany

Hartwig Kahlcke

Average Co-Inventor Count = 1.24

ph-index = 12

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 = 405

Hartwig KahlckeLudwig Littmann (2 patents)Hartwig KahlckeFlorian Seiffert (2 patents)Hartwig KahlckeWolfgang Franke (1 patent)Hartwig KahlckeGeorg Borger (1 patent)Hartwig KahlckeHeinz Schiebelhuth (1 patent)Hartwig KahlckeGunter Oppermann (1 patent)Hartwig KahlckeGunther Falkenbach (1 patent)Hartwig KahlckeDieter Seuwen (1 patent)Hartwig KahlckeJurgen Schneider (1 patent)Hartwig KahlckeHartwig Kahlcke (19 patents)Ludwig LittmannLudwig Littmann (54 patents)Florian SeiffertFlorian Seiffert (41 patents)Wolfgang FrankeWolfgang Franke (16 patents)Georg BorgerGeorg Borger (6 patents)Heinz SchiebelhuthHeinz Schiebelhuth (6 patents)Gunter OppermannGunter Oppermann (4 patents)Gunther FalkenbachGunther Falkenbach (2 patents)Dieter SeuwenDieter Seuwen (1 patent)Jurgen SchneiderJurgen Schneider (1 patent)
..
Inventor’s number of patents
..
Strength of working relationships

Company Filing History:

1. Braun Aktiengesellschaft (10 from 527 patents)

2. Robert Krups Gmbh & Co Kg (6 from 68 patents)

3. Hoechstmass Balzer Gmbh (2 from 8 patents)

4. Robert Krups Stiftung & Co. Kg. (1 from 99 patents)


19 patents:

1. D395976 - Espresso machine

2. D371271 - Electric coffeemaker

3. D359414 - Household electric coffeemaker

4. D358736 - Household electric coffeemaker

5. D351059 - Seam ripper

6. 5297340 - Parting tool

7. D337915 - Combined coffee and espresso machine

8. D336004 - Espresso making machine

9. D323949 - Espresso machine

10. 4995164 - Motor-driven can opener

11. D309083 - Juice extractor

12. D308468 - Can opener

13. D307999 - Toaster

14. D288885 - Electric coffee-machine

15. D288517 - Electric coffee-machine

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as of
1/9/2026
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