Per Hellberg
16Patents
5h-index
22Co-inventors
62Inventor score
Filing activity: Apr 5, 1994 → Dec 23, 2011
Most-cited inventions
| Patent | Title | Area | Cited by | Status |
|---|---|---|---|---|
| US6996807B1 | Consolidation and reduction of usage data | Physics | 252 | Expired |
| US6938027B1 | Hardware/software management, purchasing and optimization system | Physics | 49 | Expired |
| US7155414B2 | License compliance verification system | Physics | 16 | Expired |
| US6653395B1 | Orthoester-based polymer as well as preparation and use thereof | Chemistry; Metallurgy | 9 | Expired |
| US6978291B2 | Method for correlating job-step or execution-process information with corresponding software licensing information | Physics | 8 | Expired |
| US7527287B2 | Side curtain air-bag | Performing Operations; Transporting | 5 | Expired |
| US8372336B2 | Polymeric corrosion inhibitors | Chemistry; Metallurgy | 5 | Active |
| US9228089B2 | Polyester polyamine and polyester polyquaternary ammonium corrosion inhibitors | Emerging Cross-Sectional Technologies | 4 | Active |
| US7669894B2 | Airbag arrangement having thrust-neutral outlet cross-sections of the gas generator | Performing Operations; Transporting | 3 | Active |
| US8220831B2 | Side curtain air-bag | Performing Operations; Transporting | 1 | Active |
| US5523470A | Surfactant, process for its production and use | Chemistry; Metallurgy | 1 | Expired |
| US8940227B2 | Use of polyester polyamine and polyester polyquaternary ammonium compounds as corrosion inhibitors | Chemistry; Metallurgy | 1 | Active |
| US8039518B2 | Environmentally friendly water/oil emulsions | Chemistry; Metallurgy | 1 | Active |
| US10049192B2 | Software product inventory and usage information correlated with license agreement information | Physics | 1 | Active |
| US7288510B2 | Nitrogen-containing ortho ester-based surfactant, its preparation and use | Chemistry; Metallurgy | 0 | Expired |
| US7002045B2 | Ortho ester-based surfactant, its preparation and use | Chemistry; Metallurgy | 0 | Expired |
Source: USPTO / EPO open patent data. Inventor disambiguation is heuristic; counts are objective bibliographic measures.