Growing community of inventors

Prescott, AZ, United States of America

Rolf Engelhard

Average Co-Inventor Count = 1.29

ph-index = 10

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 = 404

Rolf EngelhardStephen P Kasten (5 patents)Rolf EngelhardRaymond P Denkewicz, Jr (4 patents)Rolf EngelhardJoseph Anthony Tessitore (1 patent)Rolf EngelhardSeth Darrell Renigar (1 patent)Rolf EngelhardRolf Engelhard (23 patents)Stephen P KastenStephen P Kasten (6 patents)Raymond P Denkewicz, JrRaymond P Denkewicz, Jr (9 patents)Joseph Anthony TessitoreJoseph Anthony Tessitore (8 patents)Seth Darrell RenigarSeth Darrell Renigar (2 patents)
..
Inventor’s number of patents
..
Strength of working relationships

Company Filing History:

1. Other (4 from 832,812 patents)

2. Zuvo Water, LLC (4 from 6 patents)

3. Blutec, Llc. (4 from 4 patents)

4. Vortex, LLC (3 from 5 patents)

5. Life Spring Limited Partnership (2 from 2 patents)

6. Rct Technologies LLC (2 from 2 patents)

7. Germiphene Corporation (2 from 2 patents)

8. Hayward Industries, Inc. (1 from 192 patents)


23 patents:

1. 10449265 - High efficiency ultra-violet reactor

2. D843554 - Air purifier

3. 9931601 - Venturi bypass system and associated methods

4. 9855362 - High intensity air purifier

5. 9408937 - Photo-catalyzing fluid mobilizing system and method

6. 9402931 - High intensity air purifier

7. 9162903 - Photo-catalyzing fluid mobilizing system and method

8. 8734724 - High intensity air purifier

9. 8277735 - High intensity air purifier

10. 8161579 - Toilet tank mounted odor eliminator

11. 8066941 - Apparatus and method for purifying water in a storage tank

12. 8066940 - Apparatus and method for removing arsenic and inorganic compositions from water

13. 8017073 - High intensity air purifier

14. 7794608 - Apparatus and method for treating water with ozone

15. 7033502 - UV lamp supported filter cartridge

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as of
12/19/2025
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