Herbert Spiegel
2Patents
1Active
2Granted
32Portfolio score
Filing activity: Mar 21, 1995 → Jan 23, 2019
Most-cited patents
| Patent | Title | Area | Cited by | Status |
|---|---|---|---|---|
| US5586720A | Hot water supply system with a ring pipeline | Emerging Cross-Sectional Technologies | 14 | Expired |
| US11486524B2 | Pipe fitting | Mechanical Engineering; Lighting; Heating | 0 | Active |
Source: USPTO / EPO open patent data. Counts and citation impact are objective bibliographic measures.