Growing community of inventors

Tullahoma, TN, United States of America

David Lapczynski

Average Co-Inventor Count = 2.00

ph-index = 2

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 = 7

David LapczynskiJeffrey S Brumfield (2 patents)David LapczynskiPhillip Dixon (1 patent)David LapczynskiDavid Lapczynski (3 patents)Jeffrey S BrumfieldJeffrey S Brumfield (3 patents)Phillip DixonPhillip Dixon (2 patents)
..
Inventor’s number of patents
..
Strength of working relationships

Company Filing History:

1. Cubic Corporation (3 from 347 patents)


3 patents:

1. 8856024 - Determining companion and joint cards in transit

2. 7624914 - Validating removable fare collection system

3. 7469817 - Validating removable fare collection system

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as of
12/31/2025
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