| Patents for G04B 23 - Arrangements producing acoustic signals at preselected times (666) |
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| 08/18/1999 | CN2334048Y Alarm setting mechanism for alarm clock |
| 07/20/1999 | US5926442 Alarm clock system incorporating a game of skill |
| 07/14/1999 | CN2329024Y Clock with recording/replaying function |
| 06/09/1999 | CN2323393Y 睡眠学习器 Sleep learner |
| 06/02/1999 | CN2322168Y Automatic alarm switch for quartz clock movement |
| 04/13/1999 | US5894455 Alarm clock system with ear insert |
| 03/10/1999 | CN2310330Y Clock-controlled timer |
| 02/17/1999 | CN1208184A Multifunctional pointer-type time-controlling clock |
| 02/03/1999 | CN2306523Y Domestic safety timing alarm |
| 08/25/1998 | US5798986 Alarm mechanism system |
| 07/15/1998 | CN1187644A Alarm clock |
| 05/13/1998 | EP0678795B1 Alarm clock |
| 04/29/1998 | EP0838046A1 Method and device for waking people sleeping in a given state of sleep |
| 04/15/1998 | EP0836126A2 Alarm electronic timepiece |
| 04/15/1998 | EP0836125A2 Alarm electronic timepiece |
| 02/25/1998 | CN2275256Y Buzzer timer |
| 01/13/1998 | US5708629 Structure of alarm clock |
| 11/12/1997 | EP0806712A2 Mechanical watch-movement with incorporated chronometer movement (chronograph movement) |
| 10/16/1997 | WO1997038359A1 Method and device for waking people sleeping in a given state of sleep |
| 10/16/1997 | DE19614790A1 Vorrichtung und Verfahren zum Wecken von Schlafenden in einem bestimmten Schlafzustand Apparatus and method for waking up from sleeping in a particular sleep state |
| 09/24/1997 | CN1035965C 计时装置 Timing device |
| 09/03/1997 | CN1158444A Switch installing structure of clock |
| 09/03/1997 | CN1158443A Pealing joint mechanism of clock |
| 06/18/1997 | CN2256550Y Combined switch for alarm clock |
| 06/12/1997 | DE19649614A1 Working clock to scale for models, e.g. model railways |
| 05/20/1997 | US5631878 Time equipment |
| 03/12/1997 | CN2249420Y Separable alarm clock |
| 03/12/1997 | CN2249419Y Remembering clock of piano music |
| 01/15/1997 | EP0555468B1 Reminder clock |
| 11/28/1996 | DE19518827A1 Wrist or pocket watch with alarm bell |
| 10/22/1996 | US5568452 Alarm clock |
| 10/02/1996 | CN2236667Y Timing speech reminder |
| 09/19/1996 | DE19509478A1 Automatic waking method for sleeping persons |
| 09/04/1996 | CN2234626Y Mechanical all-plastic timing chronopher |
| 05/21/1996 | US5519672 Fishman's alarm clock |
| 04/25/1996 | DE4437611A1 Analogue wrist watch for small children |
| 03/27/1996 | CN1119293A Timing device |
| 02/28/1996 | CN2221225Y Alarm and stopping mechanism on top of mechanical clock |
| 02/07/1996 | CN1116327A 闹钟 Alarm Clock |
| 01/03/1996 | CN2216688Y Timer |
| 12/26/1995 | US5479379 Alarm clock |
| 10/25/1995 | EP0678795A1 Alarm clock |
| 07/26/1995 | CN2204053Y Alarming clock being able alarming for several preselected times |
| 06/14/1995 | CN2200831Y Stop alarm device for alarm clock |
| 06/13/1995 | US5425006 Alarm clock |
| 06/07/1995 | CN2200193Y Graduated type alarm clock |
| 05/24/1995 | CN2198623Y 闹钟 Alarm Clock |
| 05/18/1995 | WO1995013570A1 Alarm clock |
| 10/12/1994 | CN2179597Y Time talking device with simple pointer mounted |
| 05/10/1994 | US5311488 Action alarm clock |
| 04/19/1994 | US5305291 Alarm setting and actuating mechanism for analog timepiece |
| 02/23/1994 | CN2157533Y Program-controlled alarm clock arrangement |
| 02/03/1994 | DE4312831C1 Travel clock for different time zones - has minutes hand coupled to separate rotary drive to hour hand, so that displayed hour is dependent on standing surface selected in dependence on applicable time zone |
| 02/02/1994 | CN2155032Y Timer of alarm clock |
| 10/28/1993 | DE4213780A1 Alarm setting display for mechanical alarm clock - provides visual verification of priming of alarm when both restraint lever is released and drive spring for alarm is wound |
| 10/06/1993 | CN1022349C Miniature table clock |
| 09/30/1993 | DE4209336A1 Procedure for minimum stress waking of sleeping person - establishes sleep pattern for individual using suitable sensors and records data in pulse sensor for rousing during light sleep phase |
| 08/18/1993 | CN2140535Y Amusing alarm clock |
| 07/20/1993 | US5229982 Switch assembly of an alarm clock with a snooze feature mounted thereto |
| 07/13/1993 | CA1320054C Miniature table clock |
| 04/07/1993 | CN2129110Y Timing wake-up pillow |
| 03/30/1993 | US5199009 Reminder clock |
| 03/18/1993 | WO1993005451A1 Reminder clock |
| 01/05/1993 | US5177716 Alarm clock with an improved switch button assembly |
| 11/25/1992 | CN2123085U Double-timing high-precision clock |
| 11/04/1992 | CN2121042U Clock movement for kitchen hour-counter |
| 11/04/1992 | CN2121041U Clock movement for kitchen hour-counter |
| 10/21/1992 | CN2119675U Electronic timer with sound and light devices |
| 09/23/1992 | CN2116922U Alarm clock with double alarm-stop device |
| 07/08/1992 | CN2109591U Double timed alarm clock |
| 06/17/1992 | CN2107666U Alarm bell controller for alarm clock |
| 05/20/1992 | CN2105086U Alarm timer for clock |
| 03/10/1992 | US5095468 Alarm clock |
| 12/31/1991 | US5077707 Time setting device for an alarm clock |
| 12/04/1991 | CN1015026B Alarm mechanism |
| 10/30/1991 | CN2087791U Alarm-setting mechanism of alarm clock whose alarm-setting hand is outside of clock dial |
| 09/17/1991 | CA1288957C Alarm mechanism |
| 07/31/1991 | CN2081988U Alarm clock convenient for blind person |
| 07/03/1991 | CN1013064B Alarm mechanism |
| 06/19/1991 | CN2079315U Point needle type quartz alarm watch |
| 06/05/1991 | CN2078457U Setting alarm device for mechanical alarm clock |
| 03/12/1991 | US4999821 Truck driver's wake-up device |
| 02/27/1991 | CN2072241U Quartz clock with double alarm |
| 12/05/1990 | EP0400205A1 Assembly comprising a vibratory element for producing striking sounds in a timepiece |
| 11/28/1990 | CN2066598U Timed calling device |
| 09/13/1990 | DE3912801A1 Alarm clock with temperature triggered early warning signal - has input from remote temperature sensor to trigger earlier call when adverse weather is anticipated |
| 07/25/1990 | CN1008951B Preselected device for preselected clock |
| 04/17/1990 | US4918674 Alarm timepiece |
| 12/27/1989 | CN2050180U Alarm clock time axle improving device |
| 11/28/1989 | US4884258 Miniature table clock |
| 11/15/1989 | EP0341583A1 Table-clock |
| 08/22/1989 | US4860267 Method for providing a signal to prepare waste materials for collection and waste containers incorporating an alarm device |
| 08/15/1989 | US4858211 Alarm clock latch device |
| 07/11/1989 | US4847819 Universal clock having means for indicating zonal time in other global time zones |
| 05/24/1989 | CN2038252U Small timer with warner |
| 04/11/1989 | US4821247 Ear-mounted alarm clock |
| 01/18/1989 | CN2031114U High precise timed alarm clock |
| 09/13/1988 | US4771410 Bugle alarm clock system |
| 08/17/1988 | EP0278735A1 Clocks |
| 08/11/1988 | WO1988005932A1 Clocks |