Growing community of inventors

Concord, CA, United States of America

Ellsworth A Hartbauer

Average Co-Inventor Count = 1.76

ph-index = 5

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 = 166

Ellsworth A HartbauerRudolf R Weis (3 patents)Ellsworth A HartbauerHorace N Kemp (1 patent)Ellsworth A HartbauerHenry W Rehr (1 patent)Ellsworth A HartbauerEllsworth A Hartbauer (5 patents)Rudolf R WeisRudolf R Weis (9 patents)Horace N KempHorace N Kemp (4 patents)Henry W RehrHenry W Rehr (2 patents)
..
Inventor’s number of patents
..
Strength of working relationships

Company Filing History:

1. Crown Zellerbach Corporation (5 from 107 patents)


5 patents:

1. 4189077 - Sheet material dispensing device

2. 4106684 - Sheet material dispensing device

3. 4026752 - Tail securing apparatus

4. 4000242 - Web material treating system including an inflatable platen roller

5. 3960272 - Roll product with manually graspable tail end and manufacture thereof

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as of
1/9/2026
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