Helmut Burtscher
9Patents
5h-index
14Co-inventors
52Inventor score
Filing activity: Jul 8, 1991 → Sep 9, 1999
Most-cited inventions
| Patent | Title | Area | Cited by | Status |
|---|---|---|---|---|
| US6475764B1 | Recombinant collagenase type I from clostridium histolyticum and its use for isolating cells and groups of cells | Chemistry; Metallurgy | 36 | Expired |
| US5853976A | Recombinant proteinase from clostridium histolyticum and its use for isolating cells and groups of cells | Human Necessities | 19 | Expired |
| US6406899B1 | Highly active alkaline phosphatase | Chemistry; Metallurgy | 13 | Expired |
| US5523224A | Recombinant D-hydantoinase, a process for the production and use | Chemistry; Metallurgy | 9 | Expired |
| US5679571A | Recombinant D-hydantoinase, a process for the production and use | Chemistry; Metallurgy | 8 | Expired |
| US5434067A | Process for the production and renaturation of recombinant, biologically active, eukaryotic alkaline phosphatase | Chemistry; Metallurgy | 5 | Expired |
| US5432070A | Cloned N-Methylhydantoinase | Chemistry; Metallurgy | 5 | Expired |
| US5416014A | Cloned N-carbamoyl sarcosine amidohydrolase | Emerging Cross-Sectional Technologies | 3 | Expired |
| US5213969A | Cloned N-methylhydantoinase | Chemistry; Metallurgy | 0 | Expired |
Source: USPTO / EPO open patent data. Inventor disambiguation is heuristic; counts are objective bibliographic measures.