YK

Yordan Konstantinov Kralev

Overall (All Time): #1,805,193 of 4,157,543Top 45%
2
Patents All Time

Issued Patents All Time

Showing 1–2 of 2 patents

Patent #TitleCo-InventorsDate
11660559 Filter life prediction method and filter type detection method Grant Prigge 2023-05-30
11633687 Air purifier Grant Prigge 2023-04-25