Assignee
RJ LEE GROUP INC
US·19 granted patents·4 pending applications·354 citations·filing 1987–2024
Top patents by PatentIndex Score
23 records- 0192US9920262B1Methods of separation of pyrolysis oilsRJ LEE GROUP INC·Filed 2016·Granted Mar 20, 2018·17 cites·28 claims
- 0289US6835861B2Low energy method of pyrolysis of hydrocarbon materials such as rubberRJ LEE GROUP INC·Filed 2001·Granted Dec 28, 2004·44 cites·27 claims
- 0386US6833485B2Low energy method of pyrolysis of hydrocarbon materials such as rubberRJ LEE GROUP INC·Filed 2001·Granted Dec 21, 2004·38 cites·10 claims
- 0483US7341646B2Low energy method of pyrolysis of hydrocarbon materials such as rubberRJ LEE GROUP INC·Filed 2004·Granted Mar 11, 2008·21 cites·4 claims
- 0582US10577540B2Method and apparatus for steam separation of pyrolysis oilsRJ LEE GROUP INC·Filed 2018·Granted Mar 3, 2020·2 cites·13 claims
- 0682US5281792ABattery warmerRJ LEE GROUP INC·Filed 1991·Granted Jan 25, 1994·71 cites·26 claims
- 0782US5216500ASimultaneously recording of video image and microscope stage position dataRJ LEE GROUP INC·Filed 1991·Granted Jun 1, 1993·72 cites·12 claims
- 0875US10767115B2Methods and apparatus for clarification of pyrolysis oilsRJ LEE GROUP INC·Filed 2018·Granted Sep 8, 2020·1 cites·51 claims
- 0974US10596487B2Methods and apparatus for clarification of pyrolysis oilsRJ LEE GROUP INC·Filed 2017·Granted Mar 24, 2020·1 cites·54 claims
- 1064US12371630B2Additives and methods for improving flow properties of crude oilRJ LEE GROUP INC·Filed 2022·Granted Jul 29, 2025·0 cites·24 claims
- 1164US11220634B2Method and apparatus for steam separation of pyrolysis oilsRJ LEE GROUP INC·Filed 2020·Granted Jan 11, 2022·0 cites·15 claims
- 1262US2025043190A1Methods for optimizing feedstock in pyrolysis systemsRJ LEE GROUP INC·Filed 2024·Application pending·0 cites
- 1361US5376799ATurbo-pumped scanning electron microscopeRJ LEE GROUP INC·Filed 1993·Granted Dec 27, 1994·19 cites·19 claims
- 1460US2022272982A1Metal organic frameworks comprising copper ions and processes for preparing sameRJ LEE GROUP INC·Filed 2022·Application pending·0 cites
- 1559US11993562B2Methods for isolation and purification of cannabidiol (CBD) and terpenes from hempRJ LEE GROUP INC·Filed 2022·Granted May 28, 2024·0 cites·21 claims
- 1659US4919300AShipping deviceRJ LEE GROUP INC·Filed 1989·Granted Apr 24, 1990·38 cites·16 claims
- 1754US5376792AScanning electron microscopeRJ LEE GROUP INC·Filed 1993·Granted Dec 27, 1994·15 cites·24 claims
- 1847US2013276539A1Method for non-destructive condition assessment and structural monitoring of concrete railroad ties in trackRJ LEE GROUP INC·Filed 2013·Application pending·0 cites
- 1946US2020110038A1Method and apparatus for monitoring air samples for illicit drugsRJ LEE GROUP INC·Filed 2019·Application pending·0 cites
- 2044US10725006B2Mass spectrometer method and apparatus for monitoring for TATPRJ LEE GROUP INC·Filed 2018·Granted Jul 28, 2020·0 cites·60 claims
- 2140US9291611B2Methods for quantitative analysis of asbestos in vermiculite-containing materialsRJ LEE GROUP INC·Filed 2013·Granted Mar 22, 2016·0 cites·22 claims
- 2240US5004920AMethod of preparing membrane filters for transmission electron microscopyRJ LEE GROUP INC·Filed 1990·Granted Apr 2, 1991·13 cites·14 claims
- 2322US4831236AApparatus for clearing a cellulose ester filterRJ LEE GROUP INC·Filed 1987·Granted May 16, 1989·2 cites·10 claims
Join the waitlist — get patent alerts
Get an alert when RJ LEE GROUP INC files or is granted a new patent.
We store only your email — no account needed. See our privacy policy.
Counts cover granted patents and pending applications in the PatentIndex corpus. How scoring works →