Patent Leaderboard
USPTO Patent Rankings Data through Dec 31, 2025
JL

John Lim — 14 Patents

FIFiltrol: 7 patents #3 of 17Top 20%
KAIST: 2 patents #4,169 of 11,619Top 40%
HPHarshaw/Filtrol Partnership: 1 patents #12 of 34Top 40%
Overall (All Time): #332,869 of 4,157,543Top 9%
14 Patents All Time
John Lim has been granted 14 US patents while listed as an inventor at Filtrol. The first was granted in 1980 and the most recent in November 2016. John Lim ranks #332,869 of 4,157,543 US inventors in our database (top 8.0%). Patent records list John Lim in Singapore, CA, SG.

Issued Patents All Time

Showing 1–14 of 14 patents

Patent #TitleCo-InventorsDateApprox Value ⓘ
9492959 Self-balancing hot runner with independent flow and pressure control Pierre Louis Todesco, Carol Su Lin Goh 2016-11-15
5919083 Centering template for concentric grinding 1999-07-06
5580171 Solids mixing, storing and conveying system for use with a furnace for single crystal silicon production William A. Koch, Mohan Chandra 1996-12-03
5314667 Method and apparatus for single crystal silicon production William A. Koch 1994-05-24
4701430 Hydrogenation catalyst and methods for its preparation and use to convert silicon tetrachloride to chlorosilane and silane Il Nam Jung, Ko D. Cho, Bok Ryul Yoo 1987-10-20
4613491 Redistribution catalyst and methods for its preparation and use to convert chlorosilicon hydrides to silane Il Nam Jung, Ko D. Cho, Bok Ryul Yoo 1986-09-23
4459271 Process for the exchange of crystalline zeolites Michael Brady, Adrian P. Humphries 1984-07-10 $4,555,000
4356113 Substrates with calibrated pore size and catalysts employing the same Michael Brady, Kirk Novak 1982-10-26
4333857 Attrition resistant zeolite containing catalyst Michael Brady, Dennis Stamires 1982-06-08
4325845 Zeolite catalysts and method of producing the same Michael Brady 1982-04-20
4325847 Use of additional alumina for extra zeolite stability in FCC catalyst Adrian P. Humphries, Dennis Stamires 1982-04-20
4269815 Method of exchanging sodium zeolite Warren Huang, Michael Brady 1981-05-26
4253989 Zeolitic catalyst and method of producing same Ralph Haney 1981-03-03
4206085 Balanced alumina matrix in zeolite containing catalyst Dennis Stamires, Michael Brady 1980-06-03