Laif R. Alden has been granted 13 US patents while listed as an inventor at Basf Se . The first was granted in 2013 and the most recent in December 2025. Laif R. Alden ranks #362,438 of 4,157,543 US inventors in our database (top 8.7%). Patent records list Laif R. Alden in Uniontown, PA, US.
Patents per Year Patents granted per year, 2013 to 2024 Bar chart with a peak of 4 patents in 2023. peak 4 2013: 1 patents 2013 2019: 1 patents 2019 2020: 1 patents 2020 2021: 1 patents 2021 2022: 2 patents 2022 2023: 4 patents 2023 2024: 2 patents 2024 Issued Patents All Time
Showing 1–13 of 13 patents
Patent # Title Co-Inventors Date
12491490 Evaporative emission control articles including activated carbon Chiann-Chyi Chen , Wolfgang Ruettinger , Steven Chin , Akash Abraham 2025-12-09
12168215 Evaporative emission device and adsorbent Wolfgang Ruettinger , Steven Chin , Chen Chen , Akash Abraham 2024-12-17
11865516 Catalyst device for treatment of formaldehyde and volatile organic compounds Wolfgang Ruettinger , Pascaline Tran , David Weinberger , AnJu Shi , Feng Zhao 2024-01-09
11813586 Evaporative emission control articles including activated carbon Wolfgang Ruettinger , Steven Chin , Akash Abraham , Christy Chen 2023-11-14
11779900 Evaporative emission device and adsorbent Wolfgang Ruettinger , Steven Chin , Chen Chen , Akash Abraham 2023-10-10
11624340 Evaporative emission control articles including activated carbon Chen Chen , Wolfgang Ruettinger , Steven Chin , Akash Abraham 2023-04-11
11583832 Manganese oxide based catalyst and catalyst device for the removal of formaldehyde and volatile organic compounds David Weinberger , Wolfgang Ruettinger , Pascaline Tran , Ting Gu , Feng Zhao +3 more 2023-02-21
11478773 Evaporative emission control articles including activated carbon Wolfgang Ruettinger , Steven Chin , Akash Abraham , Chen Chen 2022-10-25
11219882 Catalyst device for treatment of formaldehyde and volatile organic compounds Wolfgang Ruettinger , Pascaline Tran , David Weinberger , AnJu Shi , Feng Zhao 2022-01-11
11203009 Manganese oxide based catalyst and catalyst device for the removal of formaldehyde and volatile organic compounds David Weinberger , Wolfgang Ruettinger , Pascaline Tran , Ting Gu , Feng Zhao +3 more 2021-12-21
10780397 Base metal catalyst for treatment of ozone and volatile organic compounds present in air supply David Robinson , Mark Thomas Buelow , Michael Durilla 2020-09-22
10183252 Base metal catalyst for treatment of ozone and volatile organic compounds present in air supply David Robinson , Mark Thomas Buelow , Michael Durilla 2019-01-22
8372477 Polymeric trap with adsorbent Mark Thomas Buelow , John Kauffman , John J. Steger , William McMaster , Zhenguo Liu +1 more 2013-02-12
