Search Results
Showing results 481 to 500 of 528.
Patent
11 .beta.-substituted progesterone analogs
December 17, 1991
Patent
Measurement of ultrafine particle size distributions
December 17, 1991
Patent
Pentacyclic triterpenoid compounds as topoisomerase inhibitors or cell differentiation inducers
November 12, 1991
Patent
Process for detection of sub-micron particulate contamination on a bare (planar) substrate
October 29, 1991
Patent
Total synthesis of 20(S) and 20(R)-camptothecin and compthothecin derivatives
October 01, 1991
Patent
10,11-methylenedioxy-20(RS)-camptothecin analogs
September 17, 1991
Patent
Remote plasma enhanced CVD method and apparatus for growing an epitaxial semconductor layer
May 28, 1991
Patent
Processing additives for blended cements
May 21, 1991
Patent
Strength enhancing additive for certain portland cements
February 05, 1991
Patent
Synthesis of camptothecin and analogs thereof
January 01, 1991
Patent
Method and apparatus for automatic cuing
November 20, 1990
Patent
11 .beta.-substituted progesterone analogs
September 04, 1990
Patent
Processing additives for blended cements
July 24, 1990
Patent
Centrifugal filter for separating aerosol particles from a gas stream
May 08, 1990
Patent
Novel process for the production of ceramic flakes
April 24, 1990
Patent
Impedance cardiometer
March 06, 1990
Patent
Synthesis of camptothecin and analogs thereof
January 16, 1990
Patent
Remote plasma enhanced CVD method for growing an epitaxial semiconductor layer
September 26, 1989
Patent
17 .alpha.-(substituted-methyl)-17.beta.-hydroxy/esterified hydroxy steroids and their progestational use
August 29, 1989
Patent
Rasterization system for converting polygonal pattern data into a bit-map
June 06, 1989