SANDEN CORPORATION
1,140Patents
244Active
1,140Granted
51Portfolio score
Filing activity: Mar 18, 1981 → Mar 22, 2022 · 74 expiring within 5 years
Most-cited patents
| Patent | Title | Area | Cited by | Status |
|---|---|---|---|---|
| US4954697A | Vending apparatus for self-service store | Physics | 236 | Expired |
| US4759448A | Apparatus for identifying and storing documents | Physics | 148 | Expired |
| US4778983A | Automatic vending machine | Physics | 128 | Expired |
| US6038960A | Reciprocating pistons of piston-type compressor | Mechanical Engineering; Lighting; Heating | 123 | Expired |
| US4767917A | Automatic vending machine | Physics | 111 | Expired |
| US5353034A | Position information inputting apparatus for a vehicle travel guide system | Physics | 109 | Expired |
| US4674743A | Athletic training unit with musical rhythm reproducing speaker and exerciser's pulse detecting means | Emerging Cross-Sectional Technologies | 105 | Expired |
| US6843382B2 | Shelf apparatus for showcase | Human Necessities | 102 | Expired |
| US5336058A | Scroll-type compressor with variable displacement mechanism | Mechanical Engineering; Lighting; Heating | 95 | Expired |
| US4642034A | Scroll type compressor with displacement adjusting mechanism | Mechanical Engineering; Lighting; Heating | 90 | Expired |
| US5299491A | Beverage extracting apparatus for vending machines | Physics | 85 | Expired |
| US5640073A | Brushless dc motor unit and method of driving the unit | Emerging Cross-Sectional Technologies | 80 | Expired |
| US4940395A | Scroll type compressor with variable displacement mechanism | Mechanical Engineering; Lighting; Heating | 77 | Expired |
| US4664604A | Slant plate type compressor with capacity adjusting mechanism and rotating swash plate | Mechanical Engineering; Lighting; Heating | 70 | Expired |
| US5993171A | Scroll-type compressor with variable displacement mechanism | Mechanical Engineering; Lighting; Heating | 68 | Expired |
| US4658553A | Multi-windowpane structure for use in a temperature controlled environment | Fixed Constructions | 68 | Expired |
| US6523361B2 | Air conditioning systems | Mechanical Engineering; Lighting; Heating | 67 | Expired |
| US4943003A | Control device for heat pump with hot-water supply facility | Emerging Cross-Sectional Technologies | 65 | Expired |
| US6164940A | Scroll type compressor in which a soft starting mechanism is improved with a simple structure | Mechanical Engineering; Lighting; Heating | 63 | Expired |
| US5362211A | Scroll type fluid displacement apparatus having a capacity control mechanism | Mechanical Engineering; Lighting; Heating | 62 | Expired |
| US5598887A | Air conditioner for vehicles | Mechanical Engineering; Lighting; Heating | 61 | Expired |
| US4649809A | Beverage vending machine | Emerging Cross-Sectional Technologies | 61 | Expired |
| US6132179A | Scroll type compressor enabling a soft start with a simple structure | Mechanical Engineering; Lighting; Heating | 61 | Expired |
| US5993177A | Scroll type compressor with improved variable displacement mechanism | Mechanical Engineering; Lighting; Heating | 59 | Expired |
| US6430470B1 | Cash-less automatic vending system | Physics | 59 | Expired |
Source: USPTO / EPO open patent data. Counts and citation impact are objective bibliographic measures.