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
Method and device for evaluating evolution of tumoural lesions
Catalysts for polyurethane coating compounds
Multiple-frequency inversion method and control apparatus for internal combustion engine driven generator
Hydrating lounge chair
Device and method for adjusting a chrominance signal based on an edge strength
Methods and systems for improved engine speed control during engine starting
Single-lens reflex digital camera which displays an image for live view
  Randomly Featured Patents
Preparation of alkaline earth metal titanates
Maize inbred PH183H
Carriage for traversing stairs
Oxidation reduction sensitive green fluorescent protein variants
Sentiment classification using out of domain data
Resistor temperature device trip unit
Method and apparatus for injection moulding blanks
Slip sheet for transporting goods
High damping device for seismic response controlled structure
Photoaddressable side group polymers of high sensitivity