EPO Patents = 5

Trademarks = 1

Forward Citations = 1

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4 inventors (with patents filed for the assignee):

Bruno Putzeys (7 out of 8 patents)

Lars Risbo (7 out of 43 patents)

Carsten Tinggaard (3 out of 3 patents)

4. Morten Halvorsen (2 out of 2 patents)

7 patents: Sort by Forward Citations

1. 12425774 - Loudspeaker motor with inner permanent magnet (2025-09-23),

2. 12003935 - Loudspeaker with a non-uniform suspension and an enforcement element (2024-06-04),

3. 11956612 - Loudspeaker motor with improved linearity (2024-04-09),

4. 11405007 - Amplifier circuit (2022-08-02),

5. 11258411 - Amplifier with an at least second order filter in the control loop (2022-02-22),

6. 11082017 - Amplifier with a compensator with a network of at least third order (2021-08-03),

7. 10728659 - Method of controlling loudspeaker diaphragm excursion (2020-07-28),

Purifi Aps is a leading provider of innovative air purification solutions. With a focus on creating clean and healthy indoor environments, Purifi Aps offers a range of products designed to remove air pollutants and improve air quality. Their cutting-edge technology and commitment to sustainability make them a trusted choice for residential and commercial customers worldwide.

This text is generated by artificial intelligence and may not be accurate.

Company Badge

USPTO Data Jan 1 1976 - Dec 30 2025

7 Patents

#3 in Hojbjerg

#361 in Denmark

Hojbjerg, Denmark

Purifi Aps

Forward Citations = 1

4 inventors:

Bruno Putzeys (7 out of 8 patents)

Lars Risbo (7 out of 43 patents)

Carsten Tinggaard (3 out of 3 patents)

4. Morten Halvorsen (2 out of 2 patents)

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5 patents (EPO):

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