Growing community of inventors

Downers Grove, IL, United States of America

David Ladd

Average Co-Inventor Count = 2.15

ph-index = 7

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 = 1,785

David LaddGregory Johnson (6 patents)David LaddSenaka Balasuriya (1 patent)David LaddCurtis Duane Tuckey (1 patent)David LaddJayanthi Rangarajan (1 patent)David LaddDavid Ladd (7 patents)Gregory JohnsonGregory Johnson (7 patents)Senaka BalasuriyaSenaka Balasuriya (26 patents)Curtis Duane TuckeyCurtis Duane Tuckey (7 patents)Jayanthi RangarajanJayanthi Rangarajan (2 patents)
..
Inventor’s number of patents
..
Strength of working relationships

Company Filing History:

1. Motorola Corporation (7 from 20,290 patents)


7 patents:

1. 6757544 - System and method for determining a location relevant to a communication device and/or its associated user

2. 6539359 - Markup language for interactive services and methods thereof

3. 6493673 - Markup language for interactive services and methods thereof

4. 6493671 - Markup language for interactive services to notify a user of an event and methods thereof

5. 6470317 - Markup language to allow for billing of interactive services and methods thereof

6. 6385583 - Markup language for interactive services and methods thereof

7. 6269336 - Voice browser for interactive services and methods thereof

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as of
12/29/2025
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