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Copenhagen, Denmark

David Lewis

Average Co-Inventor Count = 1.00

ph-index = 18

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 = 682

David LewisDavid Lewis (39 patents)
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Inventor’s number of patents
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Strength of working relationships

Company Filing History:

1. Bang and Olufsen A/s (33 from 188 patents)

2. Bang & Olufsen Holding A/s (4 from 6 patents)

3. Bang & Olufsen, S.a. (2 from 2 patents)


39 patents:

1. D728517 - Loudspeaker

2. D716263 - Loudspeaker

3. D695243 - Television body with speaker

4. D652397 - Television

5. D634733 - Subwoofer

6. D633078 - Audio product

7. D617290 - Television

8. D602499 - Combined mobile telephone/MP3 player with charger

9. D600669 - Telephone

10. D590839 - Combined terminal with charger

11. D582386 - Loudspeaker

12. D582364 - Television

13. D575770 - Loudspeaker

14. D572214 - Television

15. D551204 - Music system

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as of
12/14/2025
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