Growing community of inventors

Dallas, TX, United States of America

John H Ehlert

Average Co-Inventor Count = 1.40

ph-index = 3

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 = 18

John H EhlertStephen William O'Brien (4 patents)John H EhlertJohn H Ehlert (7 patents)Stephen William O'BrienStephen William O'Brien (37 patents)
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Inventor’s number of patents
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Strength of working relationships

Company Filing History:

1. Tsi Products, Inc. (5 from 31 patents)


7 patents:

1. 9915357 - Actuator with back pressure valve

2. D744631 - Air vent housing

3. D744632 - Air vent housing

4. D717931 - Heater housing

5. D717415 - Heater housing

6. D316132 - Ski pole basket

7. D315591 - Basket for ski pole

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as of
1/21/2026
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