Growing community of inventors

Niagara Falls, NY, United States of America

John T Armbruster

Average Co-Inventor Count = 1.00

ph-index = 8

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 = 356

John T ArmbrusterJohn T Armbruster (14 patents)
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Inventor’s number of patents
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Strength of working relationships

Company Filing History:

1. American Optical Corporation (13 from 409 patents)

2. Warner Lambert Technologies, Inc. (1 from 43 patents)


14 patents:

1. D273592 - Microscope

2. D261173 - Bilirubinometer

3. D261033 - Bilirubin concentration analyzer

4. D261034 - Medical instrument housing

5. D257358 - Body and illuminator of a tissue culture microscope

6. D257357 - Body of a tissue culture microscope

7. D253909 - Refractometer

8. D250412 - Drawing attachment for a microscope

9. D247245 - Dual viewer attachment for a microscope

10. D245917 - Optometer

11. D245863 - Ophthalmic instrument control board

12. D244711 - Cabinet for a water bath shaker

13. D242790 - Microscope vertical fluorescent illuminator

14. D242791 - Multi-viewing microscope attachment

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as of
9/10/2025
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