Modified microorganisms and method of preparing and using same
US4190495A · kind A · utility
Assignee
Inventor
Key dates
| Filing date | Sep 27, 1976 |
| Grant date | Feb 26, 1980 |
| Priority date | — |
| Expiry date | Sep 27, 1996 |
Classification
- Technology area (CPC Y)Emerging Cross-Sectional Technologies
- CPC primaryY10S435/849
- WIPO fieldBiotechnology
- WIPO sectorChemistry
Abstract
Microorganisms have been developed which may be characterized as possessing substantially all of the following qualities or capabilities: PA0 (a) capable of having foreign genetic information introduced thereinto and recovered therefrom along with its expression with production of useful gene products; PA0 (b) the microorganism being dependent for growth and survival upon defined conditions; PA0 (c) the microorganism being incapable of establishment or growth or colonization and/or survival under conditions or in ecological niches that are considered to be natural and/or undesirable for said microorganism; PA0 (d) the microorganism being capable of causing genetic information incorporated therein to undergo degradation under conditions or ecological niches that are considered to be natural and/or undesirable for said microorganism; PA0 (e) the microorganism being capable of permitting cloning vectors incorporated therein to be dependent for their replication, maintenance and/or function on said microorganism; PA0 (f) the microorganism being substantially incapable of transmitting cloning vectors or recombinant DNA molecules incorporated therein to other organisms under conditions o…
Source: USPTO / EPO open patent data. Objective bibliographic and citation counts.