Growing community of inventors

Andover, MA, United States of America

Donald W Lewallen

Average Co-Inventor Count = 4.80

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 = 60

Donald W LewallenRachel M Kinicki (2 patents)Donald W LewallenGrace M Saccardo (2 patents)Donald W LewallenDaniel Gerard Maier (1 patent)Donald W LewallenBrian Collamore (1 patent)Donald W LewallenPeter Koester Rhoads (1 patent)Donald W LewallenJanice M Blackwell-Jones (1 patent)Donald W LewallenDonald W Lewallen (2 patents)Rachel M KinickiRachel M Kinicki (4 patents)Grace M SaccardoGrace M Saccardo (3 patents)Daniel Gerard MaierDaniel Gerard Maier (4 patents)Brian CollamoreBrian Collamore (4 patents)Peter Koester RhoadsPeter Koester Rhoads (2 patents)Janice M Blackwell-JonesJanice M Blackwell-Jones (2 patents)
..
Inventor’s number of patents
..
Strength of working relationships

Company Filing History:

1. Koninklijke Philips Corporation N.v. (2 from 21,366 patents)


2 patents:

1. 6491630 - Ultrasound imaging device having a soft keyboard for entering data

2. 6436040 - Intuitive user interface and control circuitry including linear distance measurement and user localization in a portable ultrasound diagnostic device

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as of
12/12/2025
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