US PATENT SUBCLASS 435 / 9
.~ Geomicrobiological testing (e.g., for petroleum, etc.)

Current as of: June, 1999
Click HD for Main Headings
Click for All Classes

Internet Version by PATENTEC © 1999      Terms of Use


435 /   HD   CHEMISTRY: MOLECULAR BIOLOGY AND MICROBIOLOGY

4  DF  MEASURING OR TESTING PROCESS INVOLVING ENZYMES OR MICRO-ORGANISMS; COMPOSITION OR TEST STRIP THEREFORE; PROCESSES OF FORMING SUCH COMPOSITION OR TEST STRIP {15}
9.~ Geomicrobiological testing (e.g., for petroleum, etc.)

DEFINITION

Classification: 435/9

Geomicrobiological testing (e.g., for petroleum, etc.):

(under subclass 4) Subject matter where the measurement or test is for the presence or absence of mineral deposits or for the presence of microorganisms which thrive in the presence of such minerals.

(1) Note. This subclass provides for detection of underground deposits of petroleum or natural gas.

SEE OR SEARCH CLASS

73, Measuring and Testing,

152.02+, for well logging, per se, wherein the logging is not determined by making a purely electrical measurement or a purely magnetic measurement.