Resources Contact Us Home
Browse by: INVENTOR PATENT HOLDER PATENT NUMBER DATE
 
 
Browse by Category: Main > Plants, Animals & Agriculture
Class Information
Number: 449/21
Name: Bee culture > Hive > Passage > Queen/drone control means
Description: Structure intended to restrict passage such that a queen bee or a drone is limited in movement therethrough, while permitting passage of worker bees.










Patents under this class:

Patent Number Title Of Patent Date Issued
6645039 Honeycomb-shallow box partition for beehives Nov. 11, 2003
4455699 Pollen trap for double queen colony with queen excluder Jun. 26, 1984
4153960 Beehive May. 15, 1979
4135265 Bee hive Jan. 23, 1979
4094026 Beehive Jun. 13, 1978











 
 
  Recently Added Patents
Vehicle fender
Mobile terminal and method for changing page thereof
Supply voltage generating circuit and semiconductor device having the same
Soybean cultivar CL1013665
DMAPN having a low DGN content and a process for preparing DMAPA having a low DGN content
Sulfonated amorphous carbon, process for producing the same and use thereof
Wall flow type exhaust gas purification filter
  Randomly Featured Patents
Rotating wave dust separator
Method for forming a trench within a semiconductor layer of material
Catamaran boat dollies
Shock absorber for sports floor
Robot self-position identification system and self-position identification method
X-ray CT apparatus, a method for changing the helical pitch, an image reconstruction processing apparatus, an image reconstruction processing method, and an image reconstruction processing pro
System and methods for purchasing services
Portable nursing center
Bar grabber
Isoindoline compounds and methods of their use