Patent · US Expired

Device for recognition and differentiation of group D streptococci

US4135981A · kind A · utility

2Cited by
3References
4Claims
0Family size

Assignee

Inventors

Key dates

Filing dateApr 27, 1977
Grant dateJan 23, 1979
Priority date—
Expiry dateApr 27, 1997

Classification

  • Technology area (CPC G)Physics
  • CPC primaryG01N2333/315
  • WIPO fieldBiotechnology
  • WIPO sectorChemistry

Abstract

Device for simultaneous recognition of group D streptococci and the differentiation of members of that group into enterococci and nonenterococci bacteria. Device comprises an elongated substantially cylindrical transparent tube having upper and lower chambers joined by a conduit having a smallest diameter smaller than either chamber. The upper chamber contains a semi-solid bile-esculin medium capable of indicating the presence of group D streptococci. The lower chamber contains a semi-solid enterococci distinguishing medium having a NaCl content of at least about 6.5%. Media in the two chambers are separated by a gas (e.g., air) within the conduit.

Source: USPTO / EPO open patent data. Objective bibliographic and citation counts.