1
Isaac J Mosgrove, Wayne F Larson, Matthew S Hill, Jon Marc Luebeck, Doug R Porter, Dirk L Bellamy: Case and cover for an electronic device. Interlogix, Klarquist Sparkman, November 13, 2001: US06317313 (265 worldwide citation)

A cover for an electronic device having a screen that includes a window and at least one device operating feature. The cover is coupleable with the electronic device such that the window of the cover overlies at least a portion of the screen and the electronic device is operable with the device oper ...


2
Walter G Henderson, John Q Archer II, Gerald R Daum, George A Ellson, John E Gray, Wayne F Larson, Rockne M Olds, Jerry P Scansen, John W Sherman, Edgar J Unrein: Electronic key with interactive graphic user interface. Supra Products, Klarquist Sparkman Campbell Leigh & Whinston, April 3, 1990: US04914732 (179 worldwide citation)

An electronic key for an electronic lock system is provided with graphical user interface which can display a plurality of symbols corresponding to a plurality of functions that the key can cause the lock to execute. An operator of the key moves a visual indicia among these symbols to select a desir ...


3
Wayne F Larson, Walter G Henderson: Electronic real estate lockbox system. Supra Products, Klarquist Sparkman Campbell Leigh & Whinston, February 23, 1988: US04727368 (136 worldwide citation)

Real estate lockbox and key designs are disclosed which provide a variety of operational features. Also disclosed is a comprehensive system that allows real estate boards and agencies to efficiently manage their lockbox operations. Features provided by the system include the ability to record all ac ...


4
John M Kniffin, Ron McCauley, Ralph H Wells III, John W Sherman, Wayne F Larson: Secure entry system with radio communications. SLC Technologies, Klarquist Sparkman Campbell Leigh & Whinston, June 6, 2000: US06072402 (126 worldwide citation)

A secure entry system makes use of radio transmissions to communicate with locks, keys, and related components throughout the system. The radio transmissions can be made using a paging system, a cellular telephone system, or any other RF carrier. Some embodiments employ a cellular telephone in lieu ...


5
John Steven Outslay, Wayne F Larson: Personal digital assistant key for an electronic lock. GE Interlogix, Klarquist Sparkman, August 30, 2005: US06937140 (101 worldwide citation)

A mechanical interface (84) for a PDA (80) allows the PDA to be positioned in an operative relationship relative to an electronic lock or electronic lockbox (82). The mechanical interface allows the PDA to be used as a key (80) to actuate the lock, by transmitting signals from the PDA to the lock. T ...


6
Walter G Henderson, John Q Archer II, Gerald R Daum, George A Ellson, John E Gray, Wayne F Larson, Rockne M Olds, Jerry P Scansen, John W Sherman, Edgar J Unrein: Electronic real estate lockbox system. Supra Products, Klarquist Sparkman Campbell Leigh & Whinston, August 30, 1988: US04766746 (98 worldwide citation)

A comprehensive real estate lockbox system is disclosed which provides a variety of operational features. Some of these features include the ability to: record all accesses to all lockboxes; transfer all or part of such records from the lockboxes to a supervising real estate agency or board; organiz ...


7
Walter G Henderson, Wayne F Larson, Philip D Barrett: Data synchronization method for use with portable, microprocessor-based device. Supra Products, Stoel Rives, February 11, 1997: US05602536 (89 worldwide citation)

One or more lock or key units of a secure entry system is equipped with a radio receiver. The receiver permits a memory in the lock or key unit to be updated with new data that is modulated onto a radio frequency signal. By this technique, system-wide changes of programming data, such as changes of ...


8
Martin A Barrett, Wayne F Larson: Electronic access control systems. Supra Products, Klarquist Sparkman Campbell Leigh & Whinston, December 12, 1995: US05475375 (85 worldwide citation)

An access control system provides a database in an access control device (i.e. key) and includes procedures assuring that the database, and a master database, are kept up to date. In the particular context of a real estate lockbox system, the keys are provided with a database detailing houses listed ...


9
Philip D Barrett, Walter G Henderson, Wayne F Larson: Keysafe system with timer/calendar features. Supra Products, Klarquist Sparkman Campbell Leigh & Whinston, January 29, 1991: US04988987 (81 worldwide citation)

An electronic lock system is disclosed in which a key can be assigned a limited lifetime, such as by storing data indicative of an expiration date in a key memory. Whenever the key is used with a lock, the lock first examines this key data and verifies that the key is still timely before performing ...


10
John M Kniffin, Ron McCauley, Ralph H Wells III, John W Sherman, Wayne F Larson: Access control device featuring key ordering or key simultaneity. Supra Products, Klarquist Sparkman Campbell Leigh & Whinston, January 6, 1998: US05705991 (67 worldwide citation)

A secure entry system makes use of radio transmissions to communicate with locks, keys, and related components throughout the system. The radio transmissions can be made using a paging system, a cellular telephone system, or any other RF carrier. Some embodiments employ a cellular telephone in lieu ...