| Patents for G04B 49 - Time-pieces using the position of the sun, moon, or stars (206) |
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| 07/21/2005 | US20050155236 Sundial with standard time display |
| 07/14/2005 | DE202005004305U1 Sun dial has a clock mechanism with a dial on which an hour scale is marked, a pillar perpendicular to the dial and a curved plate attached to the pillar and on which an analemma curve is marked |
| 06/15/2005 | EP1515202A9 Watch with bottom visible through the glass |
| 04/07/2005 | DE10342348A1 Equatorial solar wrist watch has rotatable scale with exact micrometer correction for geographical and time factors |
| 03/29/2005 | US6871407 Equatorial sundial with simple time and date interpretation |
| 03/24/2005 | WO2005026851A1 Watch having a back that can be seen through the glass |
| 03/24/2005 | US20050063253 Sun dial and method for determining average sunlight |
| 03/24/2005 | US20050060900 Equatorial sundial with simple time and date interpretation |
| 03/16/2005 | EP1515202A1 Watch with bottom visible through the glass |
| 01/26/2005 | CN1570782A Equatorial sundial for time and solar term |
| 05/27/2004 | US20040098871 Sundial |
| 01/29/2004 | DE20314132U1 Sun dial with arc structure open to the south and gnomon fixed in center of arc structure and has circular dial formed by peripheral edge of cylindrical part surface |
| 08/12/2003 | US6604290 Sidereal sundial |
| 08/07/2003 | DE20305905U1 Mobile metal sundial has two push together parts |
| 02/25/2003 | US6523270 Universal heliodon-sundial |
| 02/13/2003 | US20030029047 Universal heliodon-sundial |
| 01/02/2003 | EP1269271A1 A sundial |
| 04/11/2002 | DE10046746A1 Sonnenuhr Sundial |
| 04/09/2002 | US6367158 Sundial |
| 03/28/2002 | WO2002025381A1 Sundial |
| 10/30/2001 | US6308427 Horizontal sundial adjustable for accurate reading at multiple latitudes |
| 10/16/2001 | US6301793 Equatorial sundial apparatus utilizing one or more concave cylindrical focusing mirrors |
| 09/20/2001 | WO2001069327A1 A sundial |
| 08/09/2001 | DE10004658A1 Sundial type clock display having a terrestrial artificial light source or using the sun's light only indirectly via a wave guide or mirror arrangement, so that a sundial type time display can be achieved at all times |
| 08/08/2001 | CN2442294Y Gnomonic clock |
| 07/19/2001 | DE10002912A1 Method to manufacture sundial; involves folding sundial in form of convex polyhedron, preferably cube, without using any additional elements, e.g. gnomon |
| 03/07/2001 | EP1080637A1 Bird feeder |
| 02/23/2001 | CA2305883A1 Horizontal sundial adjustable for accurate reading at multiple latitudes |
| 11/18/2000 | CA2272120A1 Fixed-gnomon standard-time sundial |
| 11/15/2000 | CN2406273Y Timing clock indicating morning time and afternoon time |
| 08/09/2000 | EP1026558A2 Sundial |
| 03/01/2000 | CN2366871Y Time space field positioning type wrist watch |
| 01/04/2000 | US6009628 Triple projection surface sundial |
| 12/01/1999 | EP0960360A1 Sundial |
| 02/18/1999 | DE19819091C1 Satellite antenna with sun dial |
| 04/02/1998 | DE19703717A1 Fibre=optic sundial |
| 03/31/1998 | US5732473 Holographic sundial |
| 03/12/1998 | WO1998010247A1 A moon compass |
| 07/17/1997 | WO1997025656A1 Sundial |
| 07/17/1997 | WO1997025655A1 A gnomon for an equatorial sundial and a sundial using said gnomon |
| 03/05/1997 | CN2248883Y All weather meridian clock or watch |
| 01/21/1997 | US5596553 Digital sundial |
| 12/31/1996 | US5590093 Digital sundial |
| 11/19/1996 | US5576551 Ultraviolet sundial |
| 08/28/1996 | CN2234101Y Solar pole shadow observation instrument |
| 03/21/1996 | DE4431817A1 Digital sun dial using suitable arrangement of lattice grids lying one behind other |
| 11/30/1994 | CN2184216Y Sun clock |
| 10/20/1994 | DE4420202A1 Fountain with horizontal sundial and globe |
| 07/07/1994 | DE4300104A1 Double sun dial with first and second pointer arranged at angle |
| 02/17/1994 | WO1994003844A1 Digital sundial with bright wandering time scales |
| 11/30/1993 | US5265345 Universal sun-clock |
| 10/07/1993 | DE4211527A1 Sun dial clock with scale carrying surface and shadow thrower - produces pointer shadow which falls on scale carrying surface designed with step type carrying surface sections angled relatively to each other |
| 10/06/1993 | EP0563914A1 Universal sun-clock |
| 10/04/1993 | CA2079411A1 Universal sun-clock |
| 08/19/1993 | WO1993016420A1 Reflected spot sundial |
| 08/04/1993 | EP0470150B1 A sundial |
| 03/30/1993 | US5197199 Reflected spot sundial |
| 02/23/1993 | CA1313756C Universal sundial |
| 01/26/1993 | US5181324 Sundial |
| 07/22/1992 | CN1062983A Calculator for shined time of sunlight |
| 03/24/1992 | US5097549 Beach towel with symmetrical tanning device |
| 03/05/1992 | WO1992003766A1 Remote light source responsive visual time indicator |
| 02/12/1992 | EP0470150A1 A sundial. |
| 11/05/1991 | US5062212 Sundial apparatus |
| 10/15/1991 | US5056232 Remote light source responsive visual time indicator |
| 06/12/1991 | CN2078895U Twilight demonstrator |
| 11/15/1990 | WO1990013854A1 A sundial |
| 09/06/1990 | DE3907328A1 Solar compass |
| 08/07/1990 | US4945644 Hemispherical sundial with installation indicia |
| 05/15/1990 | US4924592 Plate sundial with installation indicia |
| 05/08/1990 | US4922619 Universal sundial |
| 12/26/1989 | US4890269 Heliochron |
| 08/23/1989 | EP0328572A1 Adjustable cylindrical equatorial sun dial with wire style having a reference mark for following the variations in the sun's declination |
| 07/11/1989 | US4845853 Sundial |
| 06/06/1989 | US4835875 Cylindrical sundial with installation indicia |
| 05/23/1989 | US4832453 Combination decorative light image source and calendrical device |
| 01/26/1989 | WO1989000720A1 Adjustable cylindrical equatorial sun dial with wire style having a reference mark for following the variations in the sun's declination |
| 11/22/1988 | US4785542 Sundial |
| 11/01/1988 | US4782472 Solar clock with digital time display |
| 09/14/1988 | CN87214704U Solar orientation equipment |
| 03/02/1988 | CN87202436U Time-testing intelligence toy |
| 09/16/1987 | CN86101392A Taiji clock |
| 04/14/1987 | US4656748 Sundial arrangement |
| 02/24/1987 | US4645354 Universal heliochronometer |
| 09/02/1986 | CA1210596A1 Method of and apparatus for telling time at night |
| 05/21/1986 | CN85203861U Globe for showing the time of 24 time zone in the world |
| 03/26/1986 | CN85202173U Multipurposed sundial |
| 06/04/1985 | US4520572 Geographical sundial |
| 04/23/1985 | US4512085 Method of and apparatus for telling time at night |
| 06/13/1984 | EP0110658A1 Method of and apparatus for telling time at night |
| 06/14/1983 | US4387999 Electronic sundial apparatus |
| 05/24/1983 | US4384408 Columnar sundial |
| 02/15/1983 | US4373270 Sundial |
| 10/26/1982 | US4355470 Equatorial sundial |
| 08/31/1982 | US4346521 Modern sundial |
| 07/13/1982 | US4338727 Shadowless sundial |
| 03/17/1981 | US4255864 Sun clock |
| 10/23/1979 | CA1064714A1 Solar chronometer |
| 01/23/1979 | US4136397 Astronomical timepiece |
| 01/23/1979 | US4135357 Solar chronometer |