Inventor · disambiguated record
James R. Dray
Also filed as: DRAY JAMES R · DRAY JAMES ROBERT
20 granted patents·311 citations·filing 1990–2020
96Inventor score
Files withPRAXAIR TECHNOLOGY INC8UNION CARBIDE IND GASES TECH6PROSSER NEIL M2CHAKRAVARTHY VIJAYARAGHAVAN S1HASHI MOHAMED1
Top patents by PatentIndex Score
20 records- 0197US11293671B2Refrigeration cycle for liquid oxygen densificationPROSSER NEIL M·Filed 2020·Granted Apr 5, 2022·5 cites·5 claims
- 0295US10808967B2Refrigeration cycle for liquid oxygen densificationPROSSER NEIL M·Filed 2018·Granted Oct 20, 2020·8 cites·9 claims
- 0388US10295254B2System and method for recovery of non-condensable gases such as neon, helium, xenon, and krypton from an air separation unitCHAKRAVARTHY VIJAYARAGHAVAN S·Filed 2017·Granted May 21, 2019·4 cites·18 claims
- 0488US10105637B2Adsorbent regeneration methodHASHI MOHAMED·Filed 2016·Granted Oct 23, 2018·5 cites·17 claims
- 0586US10408536B2System and method for recovery of neon and helium from an air separation unitSHELAT MAULIK R·Filed 2017·Granted Sep 10, 2019·3 cites·19 claims
- 0676US5265429ACryogenic air separation system for producing gaseous oxygenPRAXAIR TECHNOLOGY INC·Filed 1992·Granted Nov 30, 1993·35 cites·6 claims
- 0772US6378333B1Cryogenic system for producing xenon employing a xenon concentrator columnPRAXAIR TECHNOLOGY INC·Filed 2001·Granted Apr 30, 2002·20 cites·8 claims
- 0866US5148680ACryogenic air separation system with dual product side condenserUNION CARBIDE IND GASES TECH·Filed 1990·Granted Sep 22, 1992·25 cites·24 claims
- 0966US5069698AXenon production systemUNION CARBIDE IND GASES TECH·Filed 1990·Granted Dec 3, 1991·26 cites·19 claims
- 1065US5108476ACryogenic air separation system with dual temperature feed turboexpansionUNION CARBIDE IND GASES TECH·Filed 1990·Granted Apr 28, 1992·25 cites·22 claims
- 1164US5019144ACryogenic air separation system with hybrid argon columnUNION CARBIDE IND GASES TECH·Filed 1990·Granted May 28, 1991·23 cites·27 claims
- 1262US5546767ACryogenic rectification system for producing dual purity oxygenPRAXAIR TECHNOLOGY INC·Filed 1995·Granted Aug 20, 1996·23 cites·8 claims
- 1361US5235816ACryogenic rectification system for producing high purity oxygenPRAXAIR TECHNOLOGY INC·Filed 1991·Granted Aug 17, 1993·21 cites·10 claims
- 1460US6327873B1Cryogenic rectification system for producing ultra high purity oxygenPRAXAIR TECHNOLOGY INC·Filed 2000·Granted Dec 11, 2001·11 cites·10 claims
- 1557US5098456ACryogenic air separation system with dual feed air side condensersUNION CARBIDE IND GASES TECH·Filed 1990·Granted Mar 24, 1992·19 cites·20 claims
- 1655US5802872ACryogenic air separation with combined prepurifier and regeneratorsPRAXAIR TECHNOLOGY INC·Filed 1997·Granted Sep 8, 1998·15 cites·10 claims
- 1752US6314757B1Cryogenic rectification system for processing atmospheric fluidsPRAXAIR CANADA INC·Filed 2000·Granted Nov 13, 2001·7 cites·10 claims
- 1849US5303556ASingle column cryogenic rectification system for producing nitrogen gas at elevated pressure and high purityPRAXAIR TECHNOLOGY INC·Filed 1993·Granted Apr 19, 1994·14 cites·8 claims
- 1946US6272884B1Rapid restart system for cryogenic air separation plantPRAXAIR TECHNOLOGY INC·Filed 1998·Granted Aug 14, 2001·10 cites·10 claims
- 2046US5114452ACryogenic air separation system for producing elevated pressure product gasUNION CARBIDE IND GASES TECH·Filed 1990·Granted May 19, 1992·12 cites·18 claims
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