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	Browse Inventions: Passive Solar Water Heater Passive Solar Water Heater In 1881, Clarence Kemp founded the C.M. Kemp Manufacturing Company in . . . . Pasteurization Improvement in Brewing Beer and Ale French chemist Louis Pasteur was the founder of microbiological scienc . . . . Pattern lathe Thomas Blanchard devised a machine that transformed gun manufacturing . . . . Peach and Fruit Peach and Fruit During a lifetime devoted to plant breeding, Luther Burbank developed . . . . Peanut Products Cosmetic and Process of Producing the Same; Paint and Stain and Process of Producing the Same Agricultural chemist George Washington Carver developed . . . . Penicillin Method for Production of Penicillin Andrew J. Moyer's discoveries provided the foundation for the industri . . . . Penicillin Displacement of the Thiazolidine Ring in Penicillin with the Formation of a Biologically Active Cephem System Sir Alexander Fleming's 1928 discovery of penicillin in bread mold was a tremendous breakthrough for medical science. Unfortunately, Fleming's process for harvesting the antibiotic took months to generate a small amount. During World War II, as demand for penicillin rose, researchers worked feverishly to synthesize the penicillin molecule. More than a thousand scientists in 39 U.S. labs became involved in the project. But when the war ended and the molecule still had not revealed its structure, the funds for research ended. From 1948 to 1957 only one laboratory of continued the research-John Sheehan's. In March of 1957, while a professor at the . . . . Pentothal / Anesthesia Thiobarbituric Acid Derivatives Ernest H. Volwiler and Donalee L. Tabern discovered the general anesth . . . . Pentothal / Anesthesia Thiobarbituric Acid Derivatives Ernest H. Volwiler and Donalee L. Tabern discovered the general anesth . . . . Peripherals Microcomputer System with Bus Control Means for Peripheral Processing Devices Dennis Moeller and Mark Dean together created a microcomputer system w . . . . Peripherals Microcomputer System with Bus Control Means for Peripheral Processing Devices Mark Dean and his co-inventor Dennis Moeller created a microcomputer s . . . . Personal Computer Microcomputer for Use with Video Display Wozniak's Apple II personal computer - introduced in 1977 and featurin . . . . pH Meter Apparatus for Testing Acidity Arnold O. Beckman invented a pH meter for measuring acidity and alkali . . . . Phonograph Record Photo Composing Machine Photo Composing Machine Louis Marius Moyroud and Rene Alphonse Higonnet developed the first pr . . . . Photo Composing Machine Photo Composing Machine Louis Marius Moyroud and Rene Alphonse Higonnet developed the first pr . . . . Photography Method and Apparatus for Coating Plates for use in Photography Eastman began his search for a transparent and flexible film in 1884. The first commercial film, put into production a year later, was cut in narrow strips and wound on a roller device patented by Eastman and Walker. Film rolls sufficient for 100 exposures were mounted in a small box camera-the . . . . Photography Stroboscope Pioneering research in stroboscopic photography by Harold E. Edgerton . . . . Photography Photographic Product Comprising a Rupturable Container Carrying a Photographic Processing Liquid Physicist, manufacturing executive, and inventor Edwin Herbert Land de . . . . Physiologically Active Substances Mevastatin In 1973, Akira Endo of Sankyo Company in Tokyo discovered mevastatin, . . . . Plasma Display Plasma Display Plasma Display Plasma Display Plasma Display Plasma Display Plows Improvement in Plows John Deere developed the first American cast steel plow. The implemen . . . . Plutonium Isolation Plutonium Isolation Glenn T. Seaborg was a central figure in the effort to develop atomic . . . . Pneumatic rubber tires Pneumatic tire for cycles Polymer Cable Sheath Polymer Cable Sheath By finding a way to stabilize the polymers used to coat communications . . . . Polymer Cable Sheath Polymer Cable Sheath By finding a way to stabilize the polymers used to coat communications . . . . Polymer Cable Sheath Polymer Cable Sheath By finding a way to stabilize the polymers used to coat communications . . . . Polymerase Chain Reacton Process for Amplifying Nucleic Acid Sequences The polymerase chain reaction, which was devised by Kary Mullis, has r . . . . Polyurethane Process for Making Polymeric Products and for Modifying Polymeric Products William Edward Hanford and Donald Fletcher Holmes invented the process for making the multipurpose material polyurethane. Holmes teamed up with Edward Hanford at . . . . Polyurethane Process for Making Polymeric Products and for Modifying Polymeric Products William Edward Hanford and Donald Fletcher Holmes invented the process for making the multipurpose material polyurethane.They teamed up at . . . . Polyvinyl Chloride (PVC) Synthetic Rubber-like Composition and Method of Making Same; Method of Preparing Polyvinyl Halide Products In 1926 Waldo Semon, newly employed in the research department at . . . . Portable electric vacuum cleaner Portable voltmeter Post It Notes Post It Notes In 1968, Spencer Silver was a senior scientist working to develop new . . . . Post It Notes Post-It Notes Art Fry was a new product development researcher at 3M when he learned . . . . Power loom Prednisone Preparation of Silver Vanadium Oxide Cathodes Using Ag(O) and V2O5 as Starting Materials Preparation of Silver Vanadium Oxide Cathodes Using Ag(O) and V2O5 as Starting Materials Energy storage expert Esther Takeuchi led efforts to invent and refine . . . . Printing Press Process for condensing milk Process for making malleable iron Process for weaving straw with silk or thread Process of Producing Ammonia Processor Which Sequences Externally of a Central Processor Processor Which Sequences Externally of a Central Processor Carver Mead is an inventor, chip designer, entrepreneur, and universit . . . . Production of Ammonia Pronged Vaccinating Needle Pronged Vaccinating and Testing Needle Microbiologist Benjamin A. Rubin ground the eyelet of a sewing machine . . . . Prozac Aryloxyphenylpropylamines Klaus Schmiegel and Bryan Molloy co-invented a class of aryloxyphenylp . . . . Prozac Aryloxyphenylpropylamines Bryan Molloy and Klaus Schmiegel co-invented a class of aryloxyphenylp . . . . Public-Key Cryptography Public-Key Cryptography In 1976, Whitfield Diffie, Martin Hellman, and Ralph Merkle developed . . . . Public-Key Cryptography Public-Key Cryptography In 1976, Whitfield Diffie, Martin Hellman, and Ralph Merkle developed . . . . Pullman car Pulse Code Modulation Communication System Employing Pulse Code Modulation Bernard Oliver, one of the most prolific and influential inventors of . . . . Pulse Code Modulation Communication System Employing Pulse Code Modulation Claude Shannon produced one of the great conceptual breakthroughs of h . . . . Punch Card Tabulator Art of Compiling Statistics; Apparatus for Compiling Statistics Herman Hollerith invented and developed a punch-card tabulation machine system that revolutionized statistical computation. Hollerith began working on the tabulating system during his days at MIT, filing for the first patent in 1884. He developed a hand-fed 'press' that sensed the holes in punched cards; a wire would pass through the holes into a cup of mercury beneath the card closing the electrical circuit. This process triggered mechanical counters and sorter bins and tabulated the appropriate data. Hollerith's system-including punch, tabulator, and sorter-allowed the official 1890 population count to be tallied in six months, and in another two years all the census data was completed and defined; the cost was $5 million below the forecasts and saved more than two years' time. His later machines mechanized the card-feeding process, added numbers, and sorted cards, in addition to merely counting data. In 1896 Hollerith founded the Tabulating Machine Company, forerunner of Computer Tabulating Recording Company (CTR). He served as a consulting engineer with CTR until retiring in 1921. In 1924 CTR changed its name to . . . . Purified Insulin Isolated,Purified Insulin PYREX Brand Cookware PYREX Brand Cookware Eugene C. Sullivan left the U.S. Geological Survey and came to Corning . . . .