Scroll Technologies
163Patents
17Active
163Granted
41Portfolio score
Filing activity: Oct 17, 1996 → Sep 16, 2009 · 17 expiring within 5 years
Most-cited patents
| Patent | Title | Area | Cited by | Status |
|---|---|---|---|---|
| US6406265B1 | Compressor diagnostic and recording system | Mechanical Engineering; Lighting; Heating | 148 | Expired |
| US6202438A | Compressor economizer circuit with check valve | Mechanical Engineering; Lighting; Heating | 75 | Expired |
| US6966759B2 | Compressor diagnostic and recording system | Mechanical Engineering; Lighting; Heating | 74 | Expired |
| US6454538B1 | Motor protector in pocket on non-orbiting scroll and routing of wires thereto | Mechanical Engineering; Lighting; Heating | 67 | Expired |
| US6293776A | Method of connecting an economizer tube | Mechanical Engineering; Lighting; Heating | 66 | Expired |
| US6210120A | Low charge protection vent | Mechanical Engineering; Lighting; Heating | 64 | Expired |
| US6413058B1 | Variable capacity modulation for scroll compressor | Mechanical Engineering; Lighting; Heating | 60 | Expired |
| US6884042B2 | Two-step self-modulating scroll compressor | Mechanical Engineering; Lighting; Heating | 59 | Expired |
| US5947701A | Simplified scroll compressor modulation control | Mechanical Engineering; Lighting; Heating | 59 | Expired |
| US6085530A | Discharge temperature sensor for sealed compressor | Mechanical Engineering; Lighting; Heating | 59 | Expired |
| US6984114B2 | Two-step self-modulating scroll compressor | Mechanical Engineering; Lighting; Heating | 58 | Expired |
| US6406266B1 | Motor protector on non-orbiting scroll | Mechanical Engineering; Lighting; Heating | 54 | Expired |
| US6558126B1 | Compressor utilizing low volt power tapped from high volt power | Mechanical Engineering; Lighting; Heating | 53 | Expired |
| US6964558B2 | Compressor utilizing low volt power tapped from high volt power | Mechanical Engineering; Lighting; Heating | 49 | Expired |
| US6123528A | Reed discharge valve for scroll compressors | Emerging Cross-Sectional Technologies | 45 | Expired |
| US7261527B2 | Compressor check valve retainer | Mechanical Engineering; Lighting; Heating | 40 | Expired |
| US6132191A | Check valve for scroll compressor | Emerging Cross-Sectional Technologies | 39 | Expired |
| US6227830A | Check valve mounted adjacent scroll compressor outlet | Emerging Cross-Sectional Technologies | 37 | Expired |
| US6896498B1 | Scroll compressor with hot oil temperature responsive relief of back pressure chamber | Mechanical Engineering; Lighting; Heating | 36 | Expired |
| US7255542B2 | Compressor with check valve orientated at angle relative to discharge tube | Mechanical Engineering; Lighting; Heating | 35 | Expired |
| US6174149A | Scroll compressor with captured counterweight | Emerging Cross-Sectional Technologies | 35 | Expired |
| US6077057A | Scroll compressor with back pressure seal protection during reverse rotation | Mechanical Engineering; Lighting; Heating | 34 | Expired |
| USRE40399E1 | Low charge protection vent | General | 29 | Expired |
| US6488489B2 | Method of aligning scroll compressor components | Emerging Cross-Sectional Technologies | 25 | Expired |
| US6736622B1 | Scroll compressor with offset scroll members | Mechanical Engineering; Lighting; Heating | 24 | Expired |
Source: USPTO / EPO open patent data. Counts and citation impact are objective bibliographic measures.