Growing community of inventors

Novi, MI, United States of America

David U Hillstrom

Average Co-Inventor Count = 1.59

ph-index = 19

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 = 1,050

David U HillstromBrian J Hillstrom (13 patents)David U HillstromYevgeniy M Levin (6 patents)David U HillstromRobert Sarkisian (5 patents)David U HillstromDavid J Muir (5 patents)David U HillstromVladimir Yasnogorodskiy (4 patents)David U HillstromJames R Seely (3 patents)David U HillstromW Douglas Schellig (2 patents)David U HillstromRandall Palmer (2 patents)David U HillstromDonald R Gaines (1 patent)David U HillstromRonald E Grewe (1 patent)David U HillstromJames J Mason (1 patent)David U HillstromAlan Adilman (1 patent)David U HillstromCecil E Ursprung (1 patent)David U HillstromStefano Beretta (1 patent)David U HillstromDonald L Gaines (1 patent)David U HillstromDennis R Cope (1 patent)David U HillstromJohn E Chandler (1 patent)David U HillstromKeith A Main (1 patent)David U HillstromPeter F Rothe (1 patent)David U HillstromJohn Sarkisian (1 patent)David U HillstromNicholas A DeRosa (1 patent)David U HillstromThomas E Pilarczyk (1 patent)David U HillstromDavid U Hillstrom (60 patents)Brian J HillstromBrian J Hillstrom (27 patents)Yevgeniy M LevinYevgeniy M Levin (8 patents)Robert SarkisianRobert Sarkisian (10 patents)David J MuirDavid J Muir (10 patents)Vladimir YasnogorodskiyVladimir Yasnogorodskiy (4 patents)James R SeelyJames R Seely (23 patents)W Douglas SchelligW Douglas Schellig (2 patents)Randall PalmerRandall Palmer (2 patents)Donald R GainesDonald R Gaines (14 patents)Ronald E GreweRonald E Grewe (12 patents)James J MasonJames J Mason (4 patents)Alan AdilmanAlan Adilman (3 patents)Cecil E UrsprungCecil E Ursprung (3 patents)Stefano BerettaStefano Beretta (2 patents)Donald L GainesDonald L Gaines (2 patents)Dennis R CopeDennis R Cope (1 patent)John E ChandlerJohn E Chandler (1 patent)Keith A MainKeith A Main (1 patent)Peter F RothePeter F Rothe (1 patent)John SarkisianJohn Sarkisian (1 patent)Nicholas A DeRosaNicholas A DeRosa (1 patent)Thomas E PilarczykThomas E Pilarczyk (1 patent)
..
Inventor’s number of patents
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Strength of working relationships

Company Filing History:

1. Marketing Displays, Inc. (51 from 101 patents)

2. Other (5 from 832,961 patents)

3. Marketing Displays International (4 from 5 patents)

4. The B. F. Goodrich Company (1 from 1,484 patents)

5. Cope, Dennis R. (0 patent)

6. Hillstrom, David U. (0 patent)


60 patents:

1. 8104205 - Sign stand with rolling base

2. 7996980 - Sign stand with rolling base

3. 7941951 - Sign stand with rolling base

4. 7698843 - Flexible sign mount

5. 7584563 - Sign stand with rolling base

6. 7458554 - Portable sign stand with sign release mechanism

7. 7174663 - Outdoor menu display device

8. 6843011 - Menu display device

9. 6755381 - Portable sign stand with leg release mechanism

10. 6631576 - Outdoor menu display device

11. 6606809 - Fold-up sign panel assembly

12. 6560906 - Portable sign stand having frangible post

13. 6427964 - Flag holder bracket for sign stand

14. 6298589 - Outdoor menu display device

15. 6237883 - Sign bracket for sign stand

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as of
1/13/2026
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