Growing community of inventors

Georgetown, TX, United States of America

William Leddy

Average Co-Inventor Count = 1.60

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 = 25

William LeddyBjorn Markus Jakobsson (5 patents)William LeddyBjorn Markus Jakobsson (3 patents)William LeddyJames Roy Palmer (3 patents)William LeddyWilliam Leddy (12 patents)Bjorn Markus JakobssonBjorn Markus Jakobsson (50 patents)Bjorn Markus JakobssonBjorn Markus Jakobsson (152 patents)James Roy PalmerJames Roy Palmer (5 patents)
..
Inventor’s number of patents
..
Strength of working relationships

Company Filing History:

1. Paypal, Inc. (11 from 2,677 patents)

2. Ebay, Incorporated (1 from 3,221 patents)


12 patents:

1. 11089009 - System and methods for secure entry of a personal identification number (PIN)

2. 11068576 - Hardening security images

3. 10791126 - System and methods for protecting users from malicious content

4. 10565361 - Hardening security images

5. 10362024 - System and methods for secure entry of a personal identification number (PIN)

6. 10257209 - System and methods for protecting users from malicious content

7. 9996683 - Physiological response pin entry

8. 9792423 - Hardening security images

9. 9390256 - System and methods for secure entry of a personal identification number (PIN)

10. 9286449 - System and methods for protecting users from malicious content

11. 9129102 - Hardening security images

12. 9083532 - Physiological response PIN entry

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as of
1/13/2026
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