L Scott Humphries, Glenn Rasmussen, Douglas L Voita, James D Pritchett: Home automation system. IntelliNet, George T Marcou, Kilpatrick & Cody L, April 15, 1997: US05621662 (335 worldwide citation)

A home automation system comprises a number of sub-systems for controlling various aspects of a house, such as a security sub-system, an HVAC sub-system, a lighting control sub-system, and an entertainment sub-system. The network comprises a host computer connected through a host interface to a plur ...

Sholom S Rosen: Electronic ticket presentation and transfer method. Citibank N A, Morgan & Finnegan, April 15, 1997: US05621797 (328 worldwide citation)

A system for open electronic commerce having a customer trusted agent securely communicating with a first money module, and a merchant trusted agent securely communicating with a second money module. Both trusted agents are capable of establishing a first cryptographically secure session, and both m ...

Chris J Diederich: Method and apparatus for thermal therapy of tumors. The Regents of the University of California, John P O Banion, April 15, 1997: US05620479 (327 worldwide citation)

An ultrasound applicator for thermal therapy, having a multi-element array of plastic or rubber coated piezoceramic tubular transducers, each with separate power control and supported by a coaxially disposed semi-flexible central tube, which can be placed directly within the tumor or target region, ...

Jack E Bridges: Electrical heating of mineral well deposits using downhole impedance transformation networks. Uentech Corporation, Dorn McEachran Jambor & Keating, April 15, 1997: US05621844 (312 worldwide citation)

A.C. electrical heating system for heating a fluid reservoir (deposit) in the vicinity of a mineral fluid well, usually an oil well, utilizes A.C. electrical power in a range of 25 Hz to 30 KHz. The well has a borehole extending down through an overburden and into a subterranean fluid (oil) reservoi ...

Jens H Molbak: Coin counter/sorter and coupon/voucher dispensing machine and method. Coinstar, Bogle & Gates P L L C, April 15, 1997: US05620079 (307 worldwide citation)

A coin sorting and counting machine and a method for operating it to automatically dispense cash vouchers based on the value of the counted coins, manufacturers' coupons and store coupons. Coins are placed in a hopper tray angled downward from the horizontal. When the hinged tray is lifted, the coin ...

Reginald V McKoy, Lilly Chin Aronds, Robert D Farris: Prepaid cash card. Bell Atlantic Network Services, Lowe Price LeBlanc & Becker, April 15, 1997: US05621787 (297 worldwide citation)

A system is provided which uses a pre-purchased card having an identity number to make long distance telephone calls or to order services over a landline telephone system. When long distance telephone calls are being purchased, the agent selling the card has the option of selecting the long distance ...

Robert B Guthrie, Richard A Potts: Methods and apparatus for inhibiting contamination of reusable pulse oximetry sensors. Hughes Multer and Schacht P S, April 15, 1997: US05619992 (297 worldwide citation)

A protective sheath for a pulse oximetry sensor. The sheath covers the sensor and inhibits contamination thereof during use. The sheath obviates the need to clean the pulse oximetry sensor after each use while reducing the likelihood of cross-patient contamination. The sheath allows the use of reusa ...

Marvin A Genshaw, Dijia Huang, Matthew K Musho, Kin F Yip: Apparatus for reduction of bias in amperometric sensors. Bayer Corporation, Jerome L Jeffers, April 15, 1997: US05620579 (287 worldwide citation)

Apparatus and method are provided for determining the concentration of an analyte in a fluid test sample by applying the fluid test sample to the surface of a working electrode which is electrochemically connected to a reference electrode which surface bears a composition comprising an enzyme specif ...

C Wayne Jaeger, Loc V Bui, Donald R Titterington, Clifford R King: Use of polymeric dyes in hot melt ink jet inks. Tektronix, Ralph D Alessandro, William A Simons, April 15, 1997: US05621022 (284 worldwide citation)

A phase change ink composition is disclosed wherein the ink composition utilizes polymeric dyes in combination with a selected phase change ink carrier composition.

Jerome Swartz, Yajun Li, Paul Dvorkis, Glenn Spitz: Method and apparatus for reading two-dimensional bar code symbols with an elongated laser line. Symbol Technologies, Fish & Richardson P C, April 15, 1997: US05621203 (272 worldwide citation)

A plurality of the areas of different light reflectivity of a bar code symbol, or the like, are simultaneously illuminated, using, e.g., a beam of laser light that has an elongated cross-section. The laser light beam is swept over the symbol in a direction transverse to the elongated dimension of th ...

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