Inventor · disambiguated record
Daniel R. Crum
Also filed as: CRUM DANIEL R
30 granted patents·4 pending applications·506 citations·filing 1990–2025
96Inventor score
Files withTRANE INT INC14AMERICAN STANDARD INC9INGERSOLL RAND INDUSTRIAL US INC7AMERICAN STANDARD INT INC1INGERSOLL RAND CO1
Top patents by PatentIndex Score
34 records- 0196US5533875AScroll compressor having a frame and open sleeve for controlling gas and lubricant flowAMERICAN STANDARD INC·Filed 1995·Granted Jul 9, 1996·104 cites·28 claims
- 0294US6000917AControl of suction gas and lubricant flow in a scroll compressorAMERICAN STANDARD INC·Filed 1997·Granted Dec 14, 1999·86 cites·30 claims
- 0394US5772411AGas flow and lubrication of a scroll compressorAMERICAN STANDARD INC·Filed 1996·Granted Jun 30, 1998·82 cites·3 claims
- 0493US11215182B2Multi-stage compressor having interstage lubricant injection via an injection rodINGERSOLL RAND INDUSTRIAL US INC·Filed 2018·Granted Jan 4, 2022·6 cites·21 claims
- 0592US5129798ACo-rotational scroll apparatus with improved scroll member biasingAMERICAN STANDARD INC·Filed 1991·Granted Jul 14, 1992·66 cites·40 claims
- 0690US11781547B2Multi-stage compressor having interstage lubricant injection via an injection rodINGERSOLL RAND IND US INC·Filed 2021·Granted Oct 10, 2023·2 cites·19 claims
- 0790US11118585B2Screw compressor with oil injection at multiple volume ratiosINGERSOLL RAND INDUSTRIAL US INC·Filed 2017·Granted Sep 14, 2021·4 cites·18 claims
- 0890US10533556B2Rotary compressors with variable speed and volume controlTRANE INT INC·Filed 2014·Granted Jan 14, 2020·7 cites·10 claims
- 0990US7819644B2Scroll compressor with crankshaft ventingTRANE INT INC·Filed 2008·Granted Oct 26, 2010·15 cites·9 claims
- 1086US11732715B2Screw compressor with oil injection at multiple volume ratiosINGERSOLL RAND INDUSTRIAL US INC·Filed 2021·Granted Aug 22, 2023·1 cites·18 claims
- 1185US2025129784A1Multi-stage compressor having interstage lubricant injection via an injection rodINGERSOLL RAND INDUSTRIAL US INC·Filed 2024·Application pending·0 cites
- 1283US12146494B2Multi-stage compressor having interstage lubricant injection via an injection rodINGERSOLL RAND INDUSTRIAL US INC·Filed 2023·Granted Nov 19, 2024·0 cites·20 claims
- 1382US10975865B2Boltless fixed scroll-to-frame jointTRANE INT INC·Filed 2017·Granted Apr 13, 2021·2 cites·18 claims
- 1481US12117001B2Screw compressor with oil injection at multiple volume ratiosINGERSOLL RAND INDUSTRIAL US INC·Filed 2023·Granted Oct 15, 2024·0 cites·20 claims
- 1577US5099658ACo-rotational scroll apparatus with optimized couplingAMERICAN STANDARD INC·Filed 1990·Granted Mar 31, 1992·37 cites·17 claims
- 1674US10404117B2Methods and systems to mount a rotor to a shaftTRANE INT INC·Filed 2018·Granted Sep 3, 2019·1 cites·16 claims
- 1773US11852145B2Rotary compressors with variable speed and volume controlTRANE INT INC·Filed 2019·Granted Dec 26, 2023·0 cites·19 claims
- 1872US10451068B2Tip sealTRANE INT INC·Filed 2015·Granted Oct 22, 2019·1 cites·15 claims
- 1972US5142885AMethod and apparatus for enhanced scroll stability in a co-rotational scrollAMERICAN STANDARD INC·Filed 1991·Granted Sep 1, 1992·29 cites·41 claims
- 2068US5212964AScroll apparatus with enhanced lubricant flowAMERICAN STANDARD INC·Filed 1992·Granted May 25, 1993·22 cites·32 claims
- 2163US11022117B2Variable capacity screw compressor and methodTRANE INT INC·Filed 2014·Granted Jun 1, 2021·0 cites·8 claims
- 2262US6270713B1Tip seal for scroll type compressors and manufacturing method thereforAMERICAN STANDARD INT INC·Filed 2000·Granted Aug 7, 2001·8 cites·7 claims
- 2362US5101644ACo-rotational scroll apparatus with positive lubricant flowAMERICAN STANDARD INC·Filed 1990·Granted Apr 7, 1992·19 cites·20 claims
- 2460US2025274014A1Liquid cooled motor for compressor air endINGERSOLL RAND INDUSTRIAL US INC·Filed 2025·Application pending·0 cites
- 2559US10851786B2Rotary screw compressor with atomized oil injectionINGERSOLL RAND CO·Filed 2017·Granted Dec 1, 2020·0 cites·11 claims
- 2659US6126422ATip seal for scroll type compressor and manufacturing method thereforAMERICAN STANDARD INC·Filed 1997·Granted Oct 3, 2000·14 cites·9 claims
- 2755US10738777B2Scroll compressor with partial load capacityTRANE INT INC·Filed 2017·Granted Aug 11, 2020·0 cites·21 claims
- 2853US10014739B2Methods and systems to mount a rotor to a shaftTRANE INT INC·Filed 2015·Granted Jul 3, 2018·0 cites·17 claims
- 2951US2021180403A1Ladder StiffenerLEVERAGE DESIGN HOLDING LLC·Filed 2019·Application pending·0 cites
- 3050US2015030490A1Bearing Housing and Assembly of a Screw CompressorTRANE INT INC·Filed 2014·Application pending·0 cites
- 3145US10753359B2Scroll compressor shaftTRANE INT INC·Filed 2017·Granted Aug 25, 2020·0 cites·16 claims
- 3244US10240603B2Compressor having external shell with vibration isolation and pressure balanceTRANE INT INC·Filed 2015·Granted Mar 26, 2019·0 cites·10 claims
- 3342US10851787B2Compressor bearing housing drainTRANE INT INC·Filed 2016·Granted Dec 1, 2020·0 cites·19 claims
- 3439US10228148B2Methods and apparatuses to isolate vibrationTRANE INT INC·Filed 2013·Granted Mar 12, 2019·0 cites·10 claims
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Identity basis: PatentsView inventor disambiguation (2025Q4-odp release). How scoring works →