Patents Assigned to British American Tobacco Investments, Ltd.
  • Patent number: 9844230
    Abstract: A class of molecularly imprinted polymers that specifically recognizes and binds to nitrosamines members of which class are useful, for example, in analysis and separation of nitrosamines from biological fluids. Such molecularly imprinted polymers are also useful in methods of treating and manufacturing tobacco products and materials.
    Type: Grant
    Filed: July 9, 2014
    Date of Patent: December 19, 2017
    Assignee: BRITISH AMERICAN TOBACCO (INVESTMENTS) LTD
    Inventors: Sumita Bhattacharyya, Kevin McAdam, Anthony Rees, Börje Sellergren, Christine Widstrand
  • Publication number: 20140246344
    Abstract: A package comprises first and second pack-containing sections. The pack-containing sections are connected by straps. A pack can be received in each pack-containing section.
    Type: Application
    Filed: March 13, 2014
    Publication date: September 4, 2014
    Applicant: British American Tobacco (Investments) LTD
    Inventors: Andrew Jonathan Bray, Alan Douglas Tearle
  • Patent number: 8413805
    Abstract: A package comprises first and second packs each capable of containing items. The packs are connected in a Jacob's ladder arrangement by straps which are initially joined together by a line of weakness, and which separate along the line of weakness upon first movement of the first and second packs relative to each other.
    Type: Grant
    Filed: May 12, 2011
    Date of Patent: April 9, 2013
    Assignee: British American Tobacco (Investments) Ltd.
    Inventors: Andrew Jonathan Bray, Alan Douglas Tearle
  • Patent number: 8227518
    Abstract: A cured porous phenolic resin is provided that can be made by cross-linking a phenol-formaldehyde pre-polymer in the presence of a pore former, preferably ethylene glycol. The resin may be formed in situ by condensing a phenol with or without modifying agents and with cross-linking agent by pouring partially cross-linked resin into hot oil, in which case mesoporous resin beads are obtained. The resulting resin has mesopores observable in carbon derived from said resin by a pore structure of said derived carbon that comprises mesopores of diameter of 20-500 ?, as estimated by nitrogen adsorption porosimentry, the value for the differential of pore volume V with respect to the logarithm of pore radius R (dV/d log R) for the mesopores being greater than 0.2 for at least some values of pore size in the range 20-500 ?. Microporous beads of the resin may be carbonized into mesoporous carbon beads.
    Type: Grant
    Filed: April 29, 2011
    Date of Patent: July 24, 2012
    Assignee: British American Tobacco (Investments) Ltd.
    Inventors: Stephen Robert Tennison, Oleksundr Prokopovych Kozynchenko, Volodymyr Vasyljovych Strelko, Andrew John Blackburn
  • Publication number: 20120174936
    Abstract: The present invention provides a method for incorporating mesopores into microporous carbon, the method comprising treating granular microporous carbon with an alkaline earth metal salt such as calcium nitrate or an alkali metal salt. The present invention also provides mesoporous carbon produced using said method and smoking articles and smoke filters comprising said mesoporous carbon.
    Type: Application
    Filed: March 10, 2010
    Publication date: July 12, 2012
    Applicant: British American Tobacco (Investments) LTD
    Inventors: Peter Branton, Katsumi Kaneko, Lei Song, Koki Urita
  • Patent number: 7850942
    Abstract: A method of making mesoporous carbon beads comprises steps of providing a nucleophilic component such as phenolic compound or phenol condensation prepolymer, dissolving the nucleophilic component in a pore former, together with at least one electrophilic cross-linking agent such as formaldehyde, paraformaldehyde, furfural and hexamethylene tetramine, dispersing the resulting solution into a mineral oil to form beads, condensing both the component and the agent in the presence of the pore former to form beads of porous resin, removing the beads from the mineral oil and carbonizing the beads to form mesoporous carbon beads.
    Type: Grant
    Filed: May 7, 2007
    Date of Patent: December 14, 2010
    Assignee: British American Tobacco (Investments) Ltd.
    Inventors: Stephen Robert Tennison, Oleksundr Prokopovych Kozynchenko, Volodymyr Vasyljovych Strelko, Andrew John Blackburn
  • Patent number: 7249605
    Abstract: This invention relates to the provision in a cigarette filter element of a capsule containing a deodorizer. The capsule is resistant to the handling endured before and during smoking, yet ruptures to release or expose the deodorizer upon extinguishing of the smoked cigarette. The deodorizer may comprise neutralizing or masking agents, or mixtures of both.
    Type: Grant
    Filed: October 10, 2003
    Date of Patent: July 31, 2007
    Assignee: British American Tobacco (Investments) Ltd.
    Inventors: Kevin Gerard MacAdam, Rosemary Elizabeth O'Reilly, Nigel David Warren
  • Patent number: 7000761
    Abstract: The invention relates to a soft-cup package (29) for smoking articles wherein the outer wrap material (10) is a paperboard or cardboard material having the ability to collapse along lines of weakening (26, 28) in the side panels (16, 20) as smoking articles are removed from the package (29). The invention also includes further means of collapse along lines of weakening (14.2, 18.2) in the base panel (14.1, 18.1). Retaining means may he provided by a collapsed side panel (20) and a dummy stamp or seal (34) across the top walls of the package (10) to hold captive the remaining exposed smoking articles (46).
    Type: Grant
    Filed: November 20, 2001
    Date of Patent: February 21, 2006
    Assignee: British American Tobacco (Investments) Ltd.
    Inventors: Pierre Radyn Swart, Hugh Dermot Roe
  • Patent number: 6701935
    Abstract: A method of incorporating fibriform smoke-modifying material in smoking material rod, wherein fibriform smoke-modifying material is fed longitudinally thereof to a rod making machine (1). The longitudinal feed path in the machine is in a travel direction of the smoking material deposition run of the suction band (3) of the machine. The fibriform material (13) is either constrained by guide means (15) in the machine to follow a feed path spaced from the run (31) of the suction band against the suction force towards the run or the feed path of the fibriform smoke-modifying material is caused to ascend toward the deposition run under the influence of the suction force towards the run, until at a predetermined distance along the deposition run the fibriform material becomes supported and is subsequently maintained at a predetermined distance from the run by particulate smoking material (20) deposited on the run. Thereafter further smoking material (20′) is deposited on the deposition run.
    Type: Grant
    Filed: February 8, 2001
    Date of Patent: March 9, 2004
    Assignee: British American Tobacco (Investments) LTD
    Inventor: Richard Oliver
  • Patent number: 6478149
    Abstract: A rigid pack of smoking articles is made to have improved shelf life and to be resealable. A barrier material is sealed around the rigid pack. The rigid pack has a potential or actual access aperture extending from a top face into a major face. The barrier material has a line of severance or weakening defining a flap, which is in register with the potential or actual access aperture. Over the flap is a layer which overlaps it on each severable side with a portion having permanently-tacky adhesive. A non-adhered pull tab is preferably provided on the layer. To open the pack the user lifts the flap and if necessary the access aperture. After removal of a smoking article the gap in the barrier layer is reclosed and resealed by the repositioning of the adhesive layer, carrying with it the flap of barrier material. A machine for assembling the pack is also disclosed.
    Type: Grant
    Filed: July 19, 2000
    Date of Patent: November 12, 2002
    Assignee: British American Tobacco (Investments) Ltd.
    Inventor: Michael Patrick Parker
  • Patent number: 6296113
    Abstract: A hinge lid cigarette packet has an upper lid and a lower lid. The packet is constructed from a blank which is of a configuration which is symmetrical about the longitudinal centerline thereof. The upper lid is formed, in conventional fashion, of specifically lid panels of the blank, whereas the lower lid is formed of portions of what in a conventional single hinge lid packet are body panels. In order for the second lid to be moved from its closed position on the first opening thereof, front and side panels of the lid are separated at lines of weakening from bounding body panels.
    Type: Grant
    Filed: September 14, 2000
    Date of Patent: October 2, 2001
    Assignee: British American Tobacco (Investments) LTD
    Inventors: Jochen Bartels, Jürgen Fiebiger, Thomas Weinhold
  • Patent number: 6164444
    Abstract: A pack (1) for smoking articles such as cigarettes has a sealed enclosure of barrier material, with a resealable access aperture to the enclosure. A cover (7) over that aperture has on all its openable edges a permanently tacky surface overlapping over the barrier material there. The cover has a non-adhesive tab (10) to assist opening. An inner frame provides support to the barrier material adjacent to the aperture, allowing the adhesive cover to be pressed firmly against the barrier layer to aid resealing. The pack may be provided with or without an outer carton. If an outer carton is included, the carton may be of a generally rigid card material, and may have a flip-top configuration, may be a Laube box, or may have a shell-and-slide configuration.An inner frame provides support to the barrier material adjacent to the aperture, allowing the adhesive cover to be pressed firmly against the barrier layer to aid resealing. The pack may be provided with or without an outer carton.
    Type: Grant
    Filed: May 12, 1999
    Date of Patent: December 26, 2000
    Assignee: British American Tobacco Investments Ltd.
    Inventors: Andrew Jonathan Bray, Michael Patrick Parker, John Roger Sampson, Adrian Roy Stewart-Cox
  • Patent number: D503014
    Type: Grant
    Filed: May 17, 2004
    Date of Patent: March 15, 2005
    Assignee: British American Tobacco Investments, Ltd.
    Inventors: Andrew Jonathan Bray, Alan Douglas Tearle, Steven Holford, Adrian Roy Stewart-Cox