IGR Enterprises
9Patents
1Active
9Granted
30Portfolio score
Filing activity: Nov 12, 1985 → Jul 2, 2003 · 1 expiring within 5 years
Most-cited patents
| Patent | Title | Area | Cited by | Status |
|---|---|---|---|---|
| US6074771A | Ceramic composite electrolytic device and method for manufacture thereof | Emerging Cross-Sectional Technologies | 82 | Expired |
| US5069987A | Solid oxide fuel cell assembly | Emerging Cross-Sectional Technologies | 41 | Expired |
| US5332483A | Gas separation system | Emerging Cross-Sectional Technologies | 28 | Expired |
| US4659448A | Solid state electrochemical pollution control device | Mechanical Engineering; Lighting; Heating | 27 | Expired |
| US6592965B1 | Ductile ceramic composite electrolyte | Emerging Cross-Sectional Technologies | 19 | Expired |
| US6703153B1 | Ceramic composite electrolytic device | Emerging Cross-Sectional Technologies | 11 | Expired |
| US6132573A | Ceramic composite electrolytic device and methods for manufacture thereof | Emerging Cross-Sectional Technologies | 10 | Expired |
| US5409371A | Oxygen welding and incorporating a novel gas separation system | Emerging Cross-Sectional Technologies | 9 | Expired |
| US7687173B2 | Process for making a ceramic composite device | Emerging Cross-Sectional Technologies | 2 | Active |
Source: USPTO / EPO open patent data. Counts and citation impact are objective bibliographic measures.