K2 Fastscan multifrequency cross-correlation phase and modulation fluorometer is capable of performing both lifetime and steady-state measurements. Light modulation is achieved with a Pockels cell; frequency synthesizers provide modulation from 100 Hz to 1 GHz. ISS 422
Sulfur. Application note describes the determination of total sulfur in pulping liquor using the TitraLab titration system. Information on instrument settings, reagents, and procedures is provided. Radiometer 416 Filter paper. "How To Choose Papers for Test Kits and Devices" provides information on selecting the proper filter paper for diagnostic and analytical test devices. Schleicher & Schuell 417 Surface a n a l y s i s . Brochure highlights the PHI 7000 time-of-flight SIMS/SALI system for organic materials research. The surface analysis by laser ionization (SALI) technique is described. 6 pp. Perkin Elmer 418 Newsletter. Process Monitor provides i n f o r m a t i o n on a p p l i c a t i o n s a n d products for bioprocess development and scale-up. Vol. 1, No. 1 includes an article on rapid optimization of an ion-exchange purification. 6 pp. Sepracor 419 Lamps. Brochure describes single and m u l t i e l e m e n t hollow cathode lamps for atomic absorption analysis. Deuterium lamps and power supplies are also listed. 18 pp. Cathodeon 420
Catalogs Immunochemistry. Immunochemical catalog lists more than 1300 antibodies, growth factors, enzyme substrate and buffer tablets, and related products. A complete line of mouse isotype controls for use in flow cytometry is also offered. Sigma Immunochemicals 421
Chromatography. Catalog contains information on GC and LC columns and other supplies for GC, LC, GC/ MS, LC/MS, U V - v i s spectrophotometry, and FT-IR spectroscopy. 256 pp. Hewlett-Packard 423 Labware. Catalog includes beakers, bottles, burets, centrifuge tubes, containers, desiccators, dispensers, filt e r s , flasks, funnels, j a r s , pipets, racks, and safety products. 186 pp. Nalge 424 Life s c i e n c e s . Catalog describes products for chromatography, electrophoresis, immunochemistry, molecular biology, sample preparation, and liquid handling. 360 pp. Bio-Rad Laboratories 425 Laboratory products. Catalog includes furnaces, baths, hot plates, stirrers, incubators, mixers, shakers, heat tapes, mantles, and cryogenics equipment. 96 pp. Barnstead/Thermolyne 426 Safety. Catalog features products for personal protection, storage and handling, i n d u s t r i a l and environmental safety, and information and training. 754 pp. Lab Safety Supply 427
What Every Chemist Should Know about the U.S. Patent System!
Understanding Chemical Patents A Guide for the Inventor, Second Edition
L
earn how to read and understand patents, how to use patents as a source of information, how to recognize that an invention has been made, and how to work with attorneys or agents in seeking patent protection for inventions. Gain enough familiarity with the special terminology of patents to be able to deal comfortably with patent attorneys, agents, and technical liaison personnel. Understanding Chemical Patents answers the questions of not only practicing chemists and chemical engineers, but also people in other fields who need to understand the patent system. Contents • • • • • • • • • • • • • • • •
Introduction: The Purpose of Patents How to Read a Patent Patents as an Information Source Deciding Whether to File a Patent Application The Independent Inventor Preparation of the Patent Application Prosecuting the Patent Application Interferences and the Importance of Records Patent Infringement and Patent Claims Making Use of Patents The Employed Inventor Copyrights, Trademarks, and Trade Secrets Recent Biotechnology-Related Patent Law Changes in U.S. Patent Laws: 1980-1990 Trends in U.S. and World Patent Law Representative U.S. Patent Fees and Payment of Money
John T. Maynard and Howard M. Peters
Chromatography. Catalog includes GC and LC columns and packings, capillary electrophoresis columns, resin-containing cartridges, chemical standards, and products for air monitoring and sample preparation. 472 pp. Supelco 428
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