Growing community of inventors

Mequon, WI, United States of America

Robert A Johnson

Average Co-Inventor Count = 2.32

ph-index = 13

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 = 420

Robert A Johnson ↔ William G Johnson (18 patents)Robert A Johnson ↔ Timothy J Wojciechowski (16 patents)Robert A Johnson ↔ John Dwyer (7 patents)Robert A Johnson ↔ Glenn T Walters (3 patents)Robert A Johnson ↔ Michael J Nickel (1 patent)Robert A Johnson ↔ Wayne R Kinnally (1 patent)Robert A JohnsonRobert A Johnson (23 patents)William G JohnsonWilliam G Johnson (25 patents)Timothy J WojciechowskiTimothy J Wojciechowski (60 patents)John DwyerJohn Dwyer (10 patents)Glenn T WaltersGlenn T Walters (47 patents)Michael J NickelMichael J Nickel (10 patents)Wayne R KinnallyWayne R Kinnally (2 patents)
..
Inventor’s number of patents
..
Strength of working relationships

Company Filing History:

1. Johnson Level & Tool Mfg. Co., Inc. (16 from 85 patents)

2. Diamond Tech LLC (7 from 22 patents)


23 patents:

1. D751430 - Box beam level

2. D751427 - I-beam level

3. D751429 - I-beam level

4. D751428 - Torpedo level

5. D750511 - Box beam level

6. D750512 - Level

7. D743818 - Box beam level

8. D743281 - Box beam level

9. D726038 - Measuring wheel

10. D726039 - Measuring wheel

11. D726040 - Measuring wheel

12. D726041 - Measuring wheel

13. D723956 - Torpedo level

14. D656425 - Hand grip for a level

15. D634221 - Level

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idiyas.com
as of
1/5/2026
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