Growing community of inventors

Sunland, CA, United States of America

Leonard J Holtz

Average Co-Inventor Count = 1.30

ph-index = 9

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 = 559

Leonard J HoltzLeon Hodes (3 patents)Leonard J HoltzGary D Johnson (2 patents)Leonard J HoltzHenry Fishman (2 patents)Leonard J HoltzJeffrey Thomas Smith (1 patent)Leonard J HoltzJeffrey G Smith (1 patent)Leonard J HoltzLeonard J Holtz (13 patents)Leon HodesLeon Hodes (6 patents)Gary D JohnsonGary D Johnson (20 patents)Henry FishmanHenry Fishman (11 patents)Jeffrey Thomas SmithJeffrey Thomas Smith (9 patents)Jeffrey G SmithJeffrey G Smith (2 patents)
..
Inventor’s number of patents
..
Strength of working relationships

Company Filing History:

1. Other (11 from 833,002 patents)

2. Turn-Up, Inc. (2 from 2 patents)


13 patents:

1. 9011300 - Weighted exercise device providing multiple grips

2. 8454485 - Weighted exercise device providing multiple grips

3. 8382647 - Weighted exercise device providing two grips

4. 5139029 - Allergy testing apparatus and method

5. 5097810 - Allergy testing apparatus and method

6. 4984942 - Tap wrench

7. 4944736 - Adaptor cap for centering, sealing, and holding a syringe to a bottle

8. 4470483 - Bicycle brake

9. 4368912 - Slide holder and transfer device

10. 4345346 - Head support

11. 4345345 - Head support

12. 3985327 - Rotatable hanging device with openable suspension member

13. 3957242 - Rotatable hanging device

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as of
1/22/2026
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