Obrist Engineering GmbH
11Patents
2Active
11Granted
31Portfolio score
Filing activity: May 18, 1999 → May 20, 2014
Most-cited patents
| Patent | Title | Area | Cited by | Status |
|---|---|---|---|---|
| US6164252A | Reciprocating piston engine with a swivel disk gear | Mechanical Engineering; Lighting; Heating | 16 | Expired |
| US7201566B2 | Reciprocating-piston machine with a joint arrangement | Mechanical Engineering; Lighting; Heating | 4 | Expired |
| US7179063B2 | Reciprocating-piston machine with a sliding sleeve | Mechanical Engineering; Lighting; Heating | 3 | Expired |
| US9512840B2 | Scroll-type compressor and CO2 vehicle air conditioning system having a scroll-type compressor | Mechanical Engineering; Lighting; Heating | 2 | Active |
| US6789569B2 | Pressure relief valve with a spring-loaded membrane closing body | Emerging Cross-Sectional Technologies | 2 | Expired |
| US7144227B2 | Reciprocating-piston machine with a driver | Mechanical Engineering; Lighting; Heating | 2 | Expired |
| US7273004B2 | Reciprocating machine | Mechanical Engineering; Lighting; Heating | 1 | Expired |
| US9291165B2 | Scroll-type compressor and CO2 vehicle air conditioning system having a scroll-type compressor | Mechanical Engineering; Lighting; Heating | 1 | Active |
| US7287399B2 | Collector for the liquid phase of the working medium of an air-conditioning system | Mechanical Engineering; Lighting; Heating | 1 | Expired |
| US6792773B2 | Collector for the liquid phase of a working medium of an air conditioning system | Mechanical Engineering; Lighting; Heating | 1 | Expired |
| US7267041B2 | Reciprocating piston compressor | Mechanical Engineering; Lighting; Heating | 0 | Expired |
Source: USPTO / EPO open patent data. Counts and citation impact are objective bibliographic measures.