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USPTO Patent Rankings Data through Dec 31, 2025
EK

Eug Y. Kwack — 6 Patents

SPSparktech: 2 patents #1 of 7Top 15%
NASA: 1 patents #1,837 of 3,881Top 50%
Walnut, CA: #141 of 870 inventorsTop 20%
California: #94,478 of 386,348 inventorsTop 25%
Overall (All Time): #779,687 of 4,157,543Top 20%
6 Patents All Time
Eug Y. Kwack has been granted 6 US patents while listed as an inventor at Sparktech. The first was granted in 1989 and the most recent in May 1993. Eug Y. Kwack ranks #779,687 of 4,157,543 US inventors in our database (top 18.8%). Patent records list Eug Y. Kwack in Walnut, CA, US.

Patents per Year

Patents granted per year, 1989 to 1993Bar chart with a peak of 2 patents in 1991.peak 21989: 1 patents19891990: 1 patents19901991: 2 patents19911992: 1 patents19921993: 1 patents1993

Issued Patents All Time

Showing 1–6 of 6 patents

Patent #TitleCo-InventorsDate
5211052 Aeroacoustic gas composition monitor Parthasarathy Shakkottai 1993-05-18
5159843 Acoustic device and method for measuring gas densities Parthasarathy Shakkottai, Lloyd Back 1992-11-03
5062295 Dual tube sonic level gage Parthasarathy Shakkottai 1991-11-05
5002894 Method for the determination of lignin content of a sample by flash pyrolysis in an atmosphere of hydrogen or helium and method therefor Parthasarathy Shakkottai, Daniel D. Lawson 1991-03-26
4896540 Aeroacoustic flowmeter Parthasarathy Shakkottai 1990-01-30
4876889 Acoustic humidity sensor Parthasarathy Shakkottai, Shakkottai P. Venkate-Shan 1989-10-31