Growing community of inventors

Des Plaines, IL, United States of America

Keith Johnson

Average Co-Inventor Count = 2.71

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 = 140

Keith JohnsonJeffrey G Rehkemper (6 patents)Keith JohnsonSteven F Rehkemper (3 patents)Keith JohnsonNicholas Grisolia (3 patents)Keith JohnsonPeter L Greenley (1 patent)Keith JohnsonCharles Hartlaub (1 patent)Keith JohnsonBret Gould (1 patent)Keith JohnsonAlexey Florov (1 patent)Keith JohnsonNicholas Grisola (0 patent)Keith JohnsonKeith Johnson (8 patents)Jeffrey G RehkemperJeffrey G Rehkemper (71 patents)Steven F RehkemperSteven F Rehkemper (85 patents)Nicholas GrisoliaNicholas Grisolia (6 patents)Peter L GreenleyPeter L Greenley (24 patents)Charles HartlaubCharles Hartlaub (13 patents)Bret GouldBret Gould (4 patents)Alexey FlorovAlexey Florov (1 patent)Nicholas GrisolaNicholas Grisola (0 patent)
..
Inventor’s number of patents
..
Strength of working relationships

Company Filing History:

1. Rehco, LLC (7 from 88 patents)

2. Spin Master Limited (1 from 221 patents)

3. Spin Master Toys (6 patents)


8 patents:

1. RE47176 - Propellers and propeller related vehicles

2. D503198 - Toy helicopter

3. D492739 - Yo-yo

4. 6758436 - Pneumatic driven propeller related vehicles

5. 6659395 - Propellers and propeller related vehicles

6. 6612893 - Toy airplane assembly having a microprocessor for assisting flight

7. 6561867 - Yo-yo having a centered disc supported by an arm

8. 6431943 - Finger-operated toy bicycle

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idiyas.com
as of
12/31/2025
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