Growing community of inventors

Hagersten, Sweden

Karl Sigfrids

Average Co-Inventor Count = 6.00

ph-index = 4

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 = 171

Karl SigfridsRichard John Titmuss (6 patents)Karl SigfridsPer Eckerdal (6 patents)Karl SigfridsOskar Werkelin Ahlin (6 patents)Karl SigfridsJamie Kirkpatrick (6 patents)Karl SigfridsEvan Shrubsole (6 patents)Karl SigfridsRichard Titmuss (0 patent)Karl SigfridsRichard Titmuss (0 patent)Karl SigfridsRichard Titmuss (0 patent)Karl SigfridsKarl Sigfrids (6 patents)Richard John TitmussRichard John Titmuss (16 patents)Per EckerdalPer Eckerdal (12 patents)Oskar Werkelin AhlinOskar Werkelin Ahlin (10 patents)Jamie KirkpatrickJamie Kirkpatrick (6 patents)Evan ShrubsoleEvan Shrubsole (6 patents)Richard TitmussRichard Titmuss (0 patent)Richard TitmussRichard Titmuss (0 patent)Richard TitmussRichard Titmuss (0 patent)
..
Inventor’s number of patents
..
Strength of working relationships

Company Filing History:

1. Spotify Ab (6 from 642 patents)


6 patents:

1. 11057370 - Methods and systems for dynamic creation of hotspots for media control

2. 10313331 - Methods and systems for dynamic creation of hotspots for media control

3. 9935943 - Methods and systems for dynamic creation of hotspots for media control

4. 9432428 - Methods and systems for dynamic creation of hotspots for media control

5. 9288200 - Methods and systems for dynamic creation of hotspots for media control

6. 9112849 - Methods and systems for dynamic creation of hotspots for media control

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as of
1/9/2026
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