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V.D.2. Elkhart County Patents by IPC Class
This chart shows the IPC classes for patents issued to Elkhart County companies. Click on the column headings to reverse or forward sort by that column.
| Class | Description | 1976-1995 | 1996-2006 | % Change |
| A01 | AGRICULTURE;FORESTRY; ANIMAL HUSBANDRY; HUNTING; TRAPPING; FISHING | 51 | 4 | -1.86% |
| A21 | BAKING; EQUIPMENT FOR MAKING OR PROCESSING DOUGHS; DOUGHS FOR BAKING | 0 | 0 | 0.00% |
| A22 | BUTCHERING; MEAT TREATMENT; PROCESSING POULTRY OR FISH | 0 | 0 | 0.00% |
| A23 | FOODS OR FOODSTUFFS; THEIR TREATMENT, NOT COVERED BY OTHER CLASSES | 29 | 0 | -1.29% |
| A24 | TOBACCO; CIGARS; CIGARETTES; SMOKERS' REQUISITES | 2 | 0 | -0.09% |
| A41 | WEARING APPAREL | 0 | 0 | 0.00% |
| A42 | HEADWEAR | 0 | 0 | 0.00% |
| A43 | FOOTWEAR | 0 | 0 | 0.00% |
| A44 | HABERDASHERY; JEWELLERY | 1 | 0 | -0.04% |
| A45 | HAND OR TRAVELLING ARTICLES | 0 | 0 | 0.00% |
| A46 | BRUSHWARE | 1 | 0 | -0.04% |
| A47 | FURNITURE; DOMESTIC ARTICLES OR APPLIANCES; COFFEE MILLS; SPICE MILLS; SUCTION CLEANERS IN GENERAL | 48 | 19 | -0.20% |
| A61 | MEDICAL OR VETERINARY SCIENCE; HYGIENE | 209 | 13 | -7.98% |
| A62 | LIFE-SAVING; FIRE-FIGHTING | 2 | 1 | 0.01% |
| A63 | SPORTS; GAMES; AMUSEMENTS | 0 | 1 | 0.10% |
| A99 | SUBJECT MATTER NOT OTHERWISE PROVIDED FOR IN THIS SECTION | 0 | 0 | 0.00% |
| B01 | PHYSICAL OR CHEMICAL PROCESSES OR APPARATUS IN GENERAL | 36 | 0 | -1.60% |
| B02 | CRUSHING, PULVERISING, OR DISINTEGRATING; PREPARATORY TREATMENT OF GRAIN FOR MILLING | 0 | 0 | 0.00% |
| B03 | SEPARATION OF SOLID MATERIALS USING LIQUIDS OR USING PNEUMATIC TABLES OR JIGS; MAGNETIC OR ELECTROST | 0 | 0 | 0.00% |
| B06 | GENERATING OR TRANSMITTING MECHANICAL VIBRATIONS IN GENERAL | 0 | 3 | 0.31% |
| B07 | SEPARATING SOLIDS FROM SOLIDS; SORTING | 0 | 0 | 0.00% |
| B08 | CLEANING | 0 | 0 | 0.00% |
| B09 | DISPOSAL OF SOLID WASTE; RECLAMATION OF CONTAMINATED SOIL | 0 | 0 | 0.00% |
| B21 | MECHANICAL METAL-WORKING WITHOUT ESSENTIALLY REMOVING MATERIAL; PUNCHING METAL | 3 | 2 | 0.07% |
| B22 | CASTING; POWDER METALLURGY | 13 | 1 | -0.48% |
| B23 | MACHINE TOOLS; METAL-WORKING NOT OTHERWISE PROVIDED FOR | 12 | 3 | -0.23% |
| B24 | GRINDING; POLISHING | 0 | 0 | 0.00% |
| B25 | HAND TOOLS; PORTABLE POWER-DRIVEN TOOLS; HANDLES FOR HAND IMPLEMENTS; WORKSHOP EQUIPMENT; MANIPULATO | 4 | 0 | -0.18% |
| B26 | HAND CUTTING TOOLS; CUTTING; SEVERING | 3 | 5 | 0.38% |
| B27 | WORKING OR PRESERVING WOOD OR SIMILAR MATERIAL; NAILING OR STAPLING MACHINES IN GENERAL | 0 | 0 | 0.00% |
| B28 | WORKING CEMENT, CLAY, OR STONE | 1 | 0 | -0.04% |
| B29 | WORKING OF PLASTICS; WORKING OF SUBSTANCES IN A PLASTIC STATE IN GENERAL | 15 | 5 | -0.16% |
| B30 | PRESSES | 1 | 0 | -0.04% |
| B31 | MAKING PAPER ARTICLES; WORKING PAPER | 3 | 0 | -0.13% |
| B32 | LAYERED PRODUCTS | 30 | 6 | -0.72% |
| B41 | PRINTING; LINING MACHINES; TYPEWRITERS; STAMPS | 0 | 4 | 0.41% |
| B42 | BOOKBINDING; ALBUMS; FILES; SPECIAL PRINTED MATTER | 1 | 0 | -0.04% |
| B43 | WRITING OR DRAWING IMPLEMENTS; BUREAU ACCESSORIES | 0 | 0 | 0.00% |
| B44 | DECORATIVE ARTS | 3 | 1 | -0.03% |
| B60 | VEHICLES IN GENERAL | 72 | 97 | 6.71% |
| B61 | RAILWAYS | 0 | 0 | 0.00% |
| B62 | LAND VEHICLES FOR TRAVELLING OTHERWISE THAN ON RAILS | 16 | 19 | 1.23% |
| B63 | SHIPS OR OTHER WATERBORNE VESSELS; RELATED EQUIPMENT | 1 | 5 | 0.47% |
| B64 | AIRCRAFT; AVIATION; COSMONAUTICS | 0 | 0 | 0.00% |
| B65 | CONVEYING; PACKING; STORING; HANDLING THIN OR FILAMENTARY MATERIAL | 26 | 5 | -0.65% |
| B66 | HOISTING; LIFTING; HAULING | 2 | 2 | 0.12% |
| B67 | OPENING OR CLOSING BOTTLES, JARS OR SIMILAR CONTAINERS; LIQUID HANDLING | 0 | 1 | 0.10% |
| B68 | SADDLERY; UPHOLSTERY | 0 | 0 | 0.00% |
| B81 | MICRO-STRUCTURAL TECHNOLOGY | 0 | 2 | 0.20% |
| B82 | NANO-TECHNOLOGY | 0 | 0 | 0.00% |
| B99 | SUBJECT MATTER NOT OTHERWISE PROVIDED FOR IN THIS SECTION | 0 | 0 | 0.00% |
| C01 | INORGANIC CHEMISTRY | 2 | 0 | -0.09% |
| C02 | TREATMENT OF WATER, WASTE WATER, SEWAGE, OR SLUDGE | 3 | 1 | -0.03% |
| C03 | GLASS; MINERAL OR SLAG WOOL | 2 | 1 | 0.01% |
| C04 | CEMENTS; CONCRETE; ARTIFICIAL STONE; CERAMICS; REFRACTORIES | 4 | 9 | 0.74% |
| C05 | FERTILISERS; MANUFACTURE THEREOF | 0 | 0 | 0.00% |
| C06 | EXPLOSIVES; MATCHES | 0 | 0 | 0.00% |
| C07 | ORGANIC CHEMISTRY | 269 | 15 | -10.45% |
| C08 | ORGANIC MACROMOLECULAR COMPOUNDS; THEIR PREPARATION OR CHEMICAL WORKING-UP; COMPOSITIONS BASED THERE | 10 | 12 | 0.78% |
| C09 | DYES; PAINTS; POLISHES; NATURAL RESINS; ADHESIVES; COMPOSITIONS NOT OTHERWISE PROVIDED FOR; APPLICAT | 15 | 2 | -0.46% |
| C10 | PETROLEUM, GAS OR COKE INDUSTRIES; TECHNICAL GASES CONTAINING CARBON MONOXIDE; FUELS; LUBRICANTS; PE | 0 | 0 | 0.00% |
| C11 | ANIMAL OR VEGETABLE OILS, FATS, FATTY SUBSTANCES OR WAXES; FATTY ACIDS THEREFROM; DETERGENTS; CANDLE | 16 | 1 | -0.61% |
| C12 | BIOCHEMISTRY; BEER; SPIRITS; WINE; VINEGAR; MICROBIOLOGY; ENZYMOLOGY; MUTATION OR GENETIC ENGINEERIN | 402 | 45 | -13.31% |
| C13 | SUGAR INDUSTRY | 0 | 0 | 0.00% |
| C14 | SKINS; HIDES; PELTS; LEATHER | 0 | 0 | 0.00% |
| C21 | METALLURGY OF IRON | 3 | 0 | -0.13% |
| C22 | METALLURGY; FERROUS OR NON-FERROUS ALLOYS; TREATMENT OF ALLOYS OR NON-FERROUS METALS | 0 | 0 | 0.00% |
| C23 | COATING METALLIC MATERIAL; COATING MATERIAL WITH METALLIC MATERIAL; CHEMICAL SURFACE TREATMENT; DIFF | 1 | 1 | 0.06% |
| C25 | ELECTROLYTIC OR ELECTROPHORETIC PROCESSES; APPARATUS THEREFOR | 4 | 1 | -0.08% |
| C30 | CRYSTAL GROWTH | 0 | 1 | 0.10% |
| C40 | COMBINATORIAL TECHNOLOGY | 0 | 0 | 0.00% |
| C99 | SUBJECT MATTER NOT OTHERWISE PROVIDED FOR IN THIS SECTION | 0 | 0 | 0.00% |
| D01 | NATURAL OR ARTIFICIAL THREADS OR FIBRES; SPINNING | 0 | 0 | 0.00% |
| D02 | YARNS; MECHANICAL FINISHING OF YARNS OR ROPES; WARPING OR BEAMING | 0 | 0 | 0.00% |
| D03 | WEAVING | 0 | 0 | 0.00% |
| D04 | BRAIDING; LACE-MAKING; KNITTING; TRIMMINGS; NON-WOVEN FABRICS | 0 | 0 | 0.00% |
| D05 | SEWING; EMBROIDERING; TUFTING | 0 | 0 | 0.00% |
| D06 | TREATMENT OF TEXTILES OR THE LIKE; LAUNDERING; FLEXIBLE MATERIALS NOT OTHERWISE PROVIDED FOR | 4 | 0 | -0.18% |
| D07 | ROPES; CABLES OTHER THAN ELECTRIC | 0 | 0 | 0.00% |
| D21 | PAPER-MAKING; PRODUCTION OF CELLULOSE | 2 | 0 | -0.09% |
| D99 | SUBJECT MATTER NOT OTHERWISE PROVIDED FOR IN THIS SECTION | 0 | 0 | 0.00% |
| E01 | CONSTRUCTION OF ROADS, RAILWAYS, OR BRIDGES | 0 | 0 | 0.00% |
| E02 | HYDRAULIC ENGINEERING; FOUNDATIONS; SOIL-SHIFTING | 0 | 1 | 0.10% |
| E03 | WATER SUPPLY; SEWERAGE | 2 | 1 | 0.01% |
| E04 | BUILDING | 17 | 25 | 1.80% |
| E05 | LOCKS; KEYS; WINDOW OR DOOR FITTINGS; SAFES | 39 | 18 | 0.10% |
| E06 | DOORS, WINDOWS, SHUTTERS, OR ROLLER BLINDS, IN GENERAL; LADDERS | 20 | 15 | 0.64% |
| E21 | EARTH OR ROCK DRILLING; MINING | 0 | 0 | 0.00% |
| E99 | SUBJECT MATTER NOT OTHERWISE PROVIDED FOR IN THIS SECTION | 0 | 0 | 0.00% |
| F01 | MACHINES OR ENGINES IN GENERAL; ENGINE PLANTS IN GENERAL; STEAM ENGINES | 3 | 2 | 0.07% |
| F02 | COMBUSTION ENGINES; HOT-GAS OR COMBUSTION- PRODUCT ENGINE PLANTS | 3 | 5 | 0.38% |
| F03 | MACHINES OR ENGINES FOR LIQUIDS; WIND, SPRING, OR WEIGHT MOTORS; PRODUCING MECHANICAL POWER OR A REA | 1 | 0 | -0.04% |
| F04 | POSITIVE-DISPLACEMENT MACHINES FOR LIQUIDS; PUMPS FOR LIQUIDS OR ELASTIC FLUIDS | 3 | 0 | -0.13% |
| F15 | FLUID-PRESSURE ACTUATORS; HYDRAULICS OR PNEUMATICS IN GENERAL | 0 | 0 | 0.00% |
| F16 | ENGINEERING ELEMENTS OR UNITS; GENERAL MEASURES FOR PRODUCING AND MAINTAINING EFFECTIVE FUNCTIONING | 43 | 23 | 0.44% |
| F17 | STORING OR DISTRIBUTING GASES OR LIQUIDS | 0 | 0 | 0.00% |
| F21 | LIGHTING | 4 | 2 | 0.03% |
| F22 | STEAM GENERATION | 0 | 0 | 0.00% |
| F23 | COMBUSTION APPARATUS; COMBUSTION PROCESSES | 0 | 0 | 0.00% |
| F24 | HEATING; RANGES; VENTILATING | 4 | 9 | 0.74% |
| F25 | REFRIGERATION OR COOLING; COMBINED HEATING AND REFRIGERATION SYSTEMS; HEAT PUMP SYSTEMS; MANUFACTURE | 3 | 7 | 0.58% |
| F26 | DRYING | 3 | 0 | -0.13% |
| F27 | FURNACES; KILNS; OVENS; RETORTS | 1 | 0 | -0.04% |
| F28 | HEAT EXCHANGE IN GENERAL | 1 | 0 | -0.04% |
| F41 | WEAPONS | 1 | 1 | 0.06% |
| F42 | AMMUNITION; BLASTING | 0 | 1 | 0.10% |
| F99 | SUBJECT MATTER NOT OTHERWISE PROVIDED FOR IN THIS SECTION | 0 | 0 | 0.00% |
| G01 | MEASURING; TESTING | 519 | 267 | 4.18% |
| G02 | OPTICS | 12 | 1 | -0.43% |
| G03 | PHOTOGRAPHY; CINEMATOGRAPHY; ANALOGOUS TECHNIQUES USING WAVES OTHER THAN OPTICAL WAVES; ELECTROGRAPH | 1 | 0 | -0.04% |
| G04 | HOROLOGY | 2 | 0 | -0.09% |
| G05 | CONTROLLING; REGULATING | 6 | 12 | 0.96% |
| G06 | COMPUTING; CALCULATING; COUNTING | 13 | 9 | 0.34% |
| G07 | CHECKING-DEVICES | 1 | 2 | 0.16% |
| G08 | SIGNALLING | 0 | 2 | 0.20% |
| G09 | EDUCATING; CRYPTOGRAPHY; DISPLAY; ADVERTISING; SEALS | 1 | 16 | 1.59% |
| G10 | MUSICAL INSTRUMENTS; ACOUSTICS | 19 | 5 | -0.34% |
| G11 | INFORMATION STORAGE | 0 | 0 | 0.00% |
| G12 | INSTRUMENT DETAILS | 0 | 0 | 0.00% |
| G21 | NUCLEAR PHYSICS; NUCLEAR ENGINEERING | 2 | 2 | 0.12% |
| G99 | SUBJECT MATTER NOT OTHERWISE PROVIDED FOR IN THIS SECTION | 0 | 0 | 0.00% |
| H01 | BASIC ELECTRIC ELEMENTS | 117 | 141 | 9.21% |
| H02 | GENERATION, CONVERSION, OR DISTRIBUTION OF ELECTRIC POWER | 16 | 14 | 0.72% |
| H03 | BASIC ELECTRONIC CIRCUITRY | 25 | 88 | 7.88% |
| H04 | ELECTRIC COMMUNICATION TECHNIQUE | 20 | 4 | -0.48% |
| H05 | ELECTRIC TECHNIQUES NOT OTHERWISE PROVIDED FOR | 21 | 17 | 0.80% |
| H99 | SUBJECT MATTER NOT OTHERWISE PROVIDED FOR IN THIS SECTION | 0 | 0 | 0.00% |
© 2006 Enovent