Growing community of inventors

Madison, WI, United States of America

Darian P Johnston

Average Co-Inventor Count = 4.57

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 = 69

Darian P Johnston ↔ Hung-Mao Liao (8 patents)Darian P Johnston ↔ Mark J Kannel (8 patents)Darian P Johnston ↔ Donald E Stiemke (8 patents)Darian P Johnston ↔ J Addison Pettis (3 patents)Darian P Johnston ↔ Bill W Baier (3 patents)Darian P Johnston ↔ Addison J Pettis (0 patent)Darian P JohnstonDarian P Johnston (8 patents)Hung-Mao LiaoHung-Mao Liao (44 patents)Mark J KannelMark J Kannel (16 patents)Donald E StiemkeDonald E Stiemke (14 patents)J Addison PettisJ Addison Pettis (4 patents)Bill W BaierBill W Baier (3 patents)Addison J PettisAddison J Pettis (0 patent)
..
Inventor’s number of patents
..
Strength of working relationships

Company Filing History:

1. Johnson Health Tech Co., Ltd (6 from 115 patents)

2. Johnson Health Tech. (2 from 4 patents)


8 patents:

1. 11529544 - Stationary exercise apparatus

2. 10960261 - Stationary exercise apparatus

3. 10369403 - Stationary exercise apparatus

4. 9339684 - Stationary exercise apparatus

5. 8403815 - Stationary exercise apparatus

6. 8092349 - Stationary exercise apparatus

7. 7722505 - Stationary exercise apparatus

8. 7654936 - Stationary exercise apparatus

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as of
1/3/2026
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