Suren Systems, Ltd.
13Patents
8Active
13Granted
42Portfolio score
Filing activity: Mar 14, 2003 → Oct 28, 2010 · 6 expiring within 5 years
Most-cited patents
| Patent | Title | Area | Cited by | Status |
|---|---|---|---|---|
| US7498576B2 | Temperature detecting system and method | Physics | 23 | Active |
| US7183912B2 | PIR motion sensor utilizing sum and difference sensor signals | Physics | 20 | Expired |
| US7399970B2 | PIR motion sensor | Physics | 19 | Expired |
| US8378820B2 | Infrared motion sensor system and method | Physics | 17 | Active |
| US8314390B2 | PIR motion sensor system | Physics | 16 | Active |
| US8354643B2 | Infrared motion sensor | Physics | 16 | Active |
| US7622845B2 | Piezoelectric transducer signal processing circuit | Electricity | 15 | Active |
| US7755052B2 | PIR motion sensor | Physics | 14 | Active |
| US7352107B2 | Transconductance circuit for piezoelectric transducer | Electricity | 14 | Active |
| US7042134B2 | Transconductance circuit for piezoelectric transducer | Electricity | 13 | Expired |
| US7399969B2 | PIR motion sensor | Physics | 13 | Expired |
| US7141910B2 | Transconductance circuit for piezoelectric transducer | Electricity | 12 | Expired |
| US7579595B2 | PIR motion sensor | Physics | 12 | Active |
Source: USPTO / EPO open patent data. Counts and citation impact are objective bibliographic measures.