Growing community of inventors

Chicago, IL, United States of America

Zbigniew Marchwiak

Average Co-Inventor Count = 2.12

ph-index = 6

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 = 148

Zbigniew MarchwiakDonald E Godshaw (2 patents)Zbigniew MarchwiakAndrezj M Redzisz (2 patents)Zbigniew MarchwiakZoran H Gracer (2 patents)Zbigniew MarchwiakIwona Malgorzata Marchwiak (2 patents)Zbigniew MarchwiakMarian Klysz (2 patents)Zbigniew MarchwiakSilvano Brugioni (2 patents)Zbigniew MarchwiakJohn Kapica (1 patent)Zbigniew MarchwiakZbigniew Marchwiak (6 patents)Donald E GodshawDonald E Godshaw (109 patents)Andrezj M RedziszAndrezj M Redzisz (60 patents)Zoran H GracerZoran H Gracer (13 patents)Iwona Malgorzata MarchwiakIwona Malgorzata Marchwiak (2 patents)Marian KlyszMarian Klysz (2 patents)Silvano BrugioniSilvano Brugioni (2 patents)John KapicaJohn Kapica (1 patent)
..
Inventor’s number of patents
..
Strength of working relationships

Company Filing History:

1. Travel Caddy, Inc. (5 from 136 patents)

2. Handi-Foil Corporation (1 from 85 patents)


6 patents:

1. 6578231 - Luggage handle

2. D463124 - Luggage handle

3. 5636733 - Luggage with retractable hook

4. 5431428 - Carrying case assembly with built-in cart

5. D357354 - Carrying case with built-in cart

6. 5339728 - Cooking rack for a pan

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as of
1/22/2026
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