1
Jonathan Wirtschafter: Timer and alarm apparatus. Mediminder Development, Steven G Parmelee, November 30, 1982: US04361408 (97 worldwide citation)

A timer and alarm apparatus suitable for complementary use with medication containers or other similar vessels. The timer includes an electronic elapsed time measuring unit and a display unit for indicating the elapsed time, an interval set unit for presetting a desired time period, an alarm unit to ...


2
Jonathan D Wirtschafter: Medication timer. Mediminder Development, Henderson & Sturm, August 3, 1993: US05233571 (65 worldwide citation)

An improved medication timer which encourages economic efficiency by providing an inexpensive restart switch that is useable and reliable with both child-resistant or non-child-resistant medication containers. This apparatus includes a timing-and-alarm unit, an automatic time-measurement restart swi ...


3
Jonathan D Wirtschafter: Medical timer apparatus. Mediminder Development Partnership, Henderson & Sturm, May 15, 1984: US04448541 (60 worldwide citation)

A medical timer apparatus being suitable for use with both integral and non-integral medication containers, and having a magnetically responsive switch for resetting the time measurement function. The magnetically responsive switch responds to magnets positioned such that the magnets will be brought ...


4
Jonathan D Wirtschafter, Richard S Walton: Medical timer apparatus. Mediminder Development Partnership, Henderson & Sturm, May 13, 1986: US04588303 (52 worldwide citation)

A medical timer apparatus that provides a time of day display and that measures time as between sensings of a monitored parameter, such as the opening of a medication container. Alarm time information may be input as either preselected times of day or as an interval between openings of the medicatio ...