Growing community of inventors

Berwyn, IL, United States of America

Doug Metzel

Average Co-Inventor Count = 1.51

ph-index = 4

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 = 80

Doug MetzelRobert Ancheta (5 patents)Doug MetzelEric Wehrli (5 patents)Doug MetzelConrad Alfaro (4 patents)Doug MetzelRobert G Challman (1 patent)Doug MetzelScott Munro (1 patent)Doug MetzelEric Martin (1 patent)Doug MetzelEric Martin (1 patent)Doug MetzelConrad Alfaro (1 patent)Doug MetzelDoug Metzel (25 patents)Robert AnchetaRobert Ancheta (7 patents)Eric WehrliEric Wehrli (6 patents)Conrad AlfaroConrad Alfaro (8 patents)Robert G ChallmanRobert G Challman (6 patents)Scott MunroScott Munro (1 patent)Eric MartinEric Martin (1 patent)Eric MartinEric Martin (2 patents)Conrad AlfaroConrad Alfaro (1 patent)
..
Inventor’s number of patents
..
Strength of working relationships

Company Filing History:

1. Carl Freudenberg Kg (21 from 516 patents)

2. Freudenberg Household Products LP (4 from 39 patents)


25 patents:

1. D1108061 - Dustpan

2. D1108062 - Dustpan

3. 12408808 - Slide release mechanism for cleaning device

4. 12369707 - Beveled broom and step-on dustpan cleaning system

5. D1077395 - Cleaning device

6. 12303088 - Release lever for cleaning device

7. D1072402 - Cleaning device

8. D1039234 - Rinse clean bucket

9. 11832775 - Rinse bucket for floor mop

10. D1002394 - Measuring cup

11. D986523 - V-trim broom

12. 11564549 - Multidirectional dusting tool

13. D974687 - Mop

14. 11425990 - Beveled broom and step-on dustpan cleaning system

15. D954373 - Floor mop

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as of
1/2/2026
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