Patent Leaderboard
USPTO Patent Rankings Data through Dec 31, 2025
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Daniel B. CARDIN — 4 Patents in 2021

EIEntech Instruments: 4 patents #1 of 1Top 100%
Simi Valley, CA: #12 of 148 inventorsTop 9%
California: #5,616 of 66,859 inventorsTop 9%
Overall (2021): #51,913 of 548,734Top 10%
4 Patents 2021

Issued Patents 2021

Showing 1–4 of 4 patents

Patent #TitleCo-InventorsDate
11169124 System and method for real time monitoring of a chemical sample 2021-11-09
11162925 High performance sub-ambient temperature multi-capillary column preconcentration system for volatile chemical analysis by gas chromatography 2021-11-02
11067548 Multi-capillary column pre-concentration system for enhanced sensitivity in gas chromatography (GC) and gas chromatography-mass spectrometry (GCMS) 2021-07-20
10928364 Thermal desorber for gas chromatography sample introduction with improved compound recovery and enhanced matrix management 2021-02-23