Patents by Inventor Lachezar Tsvetanov

Lachezar Tsvetanov has filed for patents to protect the following inventions. This listing includes patent applications that are pending as well as patents that have already been granted by the United States Patent and Trademark Office (USPTO).

  • Patent number: 10299582
    Abstract: In the specification and drawings an accessory cart is described and shown with a base, a housing element that is connected to the base and extends upward from the base, and a platform, which is connected to the housing element with the height of the platform being automatically adjustable.
    Type: Grant
    Filed: November 28, 2018
    Date of Patent: May 28, 2019
    Assignee: Humanscale Corporation
    Inventors: Jane Abernethy, Robert Volek, Mesve Vardar, Lachezar Tsvetanov, Robert R. King, David Johnston, Alexandra Burn, Xin Wang, Jonathan Philip Puleio
  • Publication number: 20190090631
    Abstract: In the specification and drawings an accessory cart is described and shown with a base, a housing element that is connected to the base and extends upward from the base, and a platform, which is connected to the housing element with the height of the platform being automatically adjustable.
    Type: Application
    Filed: November 28, 2018
    Publication date: March 28, 2019
    Applicant: Humanscale Corporation
    Inventors: Jane Abernethy, Robert Volek, Mesve Vardar, Lachezar Tsvetanov, Robert R. King, David Johnston, Alexandra Burn, Xin Wang, Jonathan Philip Puleio
  • Patent number: 10159337
    Abstract: In the specification and drawings an accessory cart is described and shown with a base, a housing element that is connected to the base and extends upward from the base, and a platform, which is connected to the housing element with the height of the platform being automatically adjustable.
    Type: Grant
    Filed: September 15, 2017
    Date of Patent: December 25, 2018
    Assignee: Humanscale Corporation
    Inventors: Jane Abernethy, Robert Volek, Mesve Vardar, Lachezar Tsvetanov, Robert R. King, David Johnston, Alexandra Burn, Xin Wang, Jonathan Philip Puleio
  • Publication number: 20180020826
    Abstract: In the specification and drawings an accessory cart is described and shown with a base, a housing element that is connected to the base and extends upward from the base, and a platform, which is connected to the housing element with the height of the platform being automatically adjustable.
    Type: Application
    Filed: September 15, 2017
    Publication date: January 25, 2018
    Inventors: Jane Abernethy, Robert Volek, Mesve Vardar, Lachezar Tsvetanov, Robert R. King, David Johnston, Alexandra Burn, Xin Wang, Jonathan Philip Puleio
  • Patent number: 9775431
    Abstract: In the specification and drawings an accessory cart is described and shown with a base, a housing element that is connected to the base and extends upward from the base, and a platform, which is connected to the housing element with the height of the platform being automatically adjustable.
    Type: Grant
    Filed: May 18, 2015
    Date of Patent: October 3, 2017
    Assignee: Humanscale Corporation
    Inventors: Jane Abernethy, Robert Volek, Mesve Vardar, Lachezar Tsvetanov, Robert King, David Johnston, Alexandra Burn, Xin Wang, Jonathan Philip Puleio
  • Publication number: 20150245708
    Abstract: In the specification and drawings an accessory cart is described and shown with a base, a housing element that is connected to the base and extends upward from the base, and a platform, which is connected to the housing element with the height of the platform being automatically adjustable.
    Type: Application
    Filed: May 18, 2015
    Publication date: September 3, 2015
    Inventors: Jane Abernethy, Robert Volek, Mesve Vardar, Lachezar Tsvetanov, Robert King, David Johnston, Alexandra Burn, Xin Wang, Jonathan Philip Puleio
  • Patent number: 9039016
    Abstract: In the specification and drawings an accessory cart is described and shown with a base, a housing element that is connected to the base and extends upward from the base, and a platform, which is connected to the housing element with the height of the platform being automatically adjustable.
    Type: Grant
    Filed: February 8, 2013
    Date of Patent: May 26, 2015
    Assignee: Humanscale Corporation
    Inventors: Jane Abernethy, Robert Volek, Mesve Vardar, Lachezar Tsvetanov, Robert R. King, David Johnston, Alexandra Burn, Xin Wang, Jonathan Philip Puleio
  • Patent number: 8141836
    Abstract: An adjustable system for mounting a computer component to a surface, including an adjustable horizontal assembly with swiveling mounting structure and an adjustable vertical assembly featuring two sliding extrusions and a stopper wedge engaged with a long screw for efficient mounting of computer components within workplaces.
    Type: Grant
    Filed: March 23, 2007
    Date of Patent: March 27, 2012
    Assignee: Humanscale Corporation
    Inventors: Manuel Saez, Stefan Spoerl, Kim ten Hacken, Lachezar Tsvetanov
  • Publication number: 20110221253
    Abstract: A reclinable chair is disclosed having right and left side connectors for pivotally connecting a backrest to a base assembly. The connectors bias the backrest into the upright position when unoccupied. In certain embodiments, the connectors can comprise elastic members, ball joints, or a plurality of elastic springs.
    Type: Application
    Filed: May 24, 2011
    Publication date: September 15, 2011
    Inventors: Manuel Saez, Lachezar Tsvetanov
  • Patent number: 7971935
    Abstract: An ergonomic chair having a seat with selectively located slot patterns or spring mechanisms to reduce pressure on the occupant of the seat and a flexible back that allows the occupant to recline while at the same time providing lumbar support. An embodiment of the chair may be telescopically stacked in a space-saving configuration of a plurality of identical chairs.
    Type: Grant
    Filed: March 24, 2006
    Date of Patent: July 5, 2011
    Assignee: Humanscale Corporation
    Inventors: Manuel Saez, Lachezar Tsvetanov
  • Publication number: 20110149510
    Abstract: An adjustable laptop holder having an adjustable tray so as to allow a user to adjust the height of a laptop screen. The adjustable laptop can comprise a base, a shaft, a tray, a friction pack, and a clutch bearing. The friction pack attaches the shaft to the base. The clutch bearing has an inner race coupled to the shaft and an outer race which engages the tray. The adjustable laptop holder having features of the present invention allows a user to freely rotate the tray into the open position yet resists returning to the closed position, effectively locking the laptop holder in the desired position.
    Type: Application
    Filed: December 23, 2009
    Publication date: June 23, 2011
    Applicant: HUMANSCALE CORPORATION
    Inventors: Fabian A. Monsalve, Jane Abernethy, Jordi Borras, Manuel Saez, Lachezar Tsvetanov
  • Patent number: 7922132
    Abstract: The present invention is directed to an accessory holder capable of supporting a plurality of accessories and positioning those accessories in three-dimensions. A preferred embodiment supports the accessories in a curvilinear shape that optimizes the viewing position by the user. The accessories include flat panel displays, touch screens, telephones, and other devices used in an office or home office environment.
    Type: Grant
    Filed: January 24, 2007
    Date of Patent: April 12, 2011
    Assignee: Humanscale Corporation
    Inventors: Manuel Saez, Bradley Augustine, Aaron Tsui, Lachezar Tsvetanov
  • Patent number: 7768500
    Abstract: An input device for a computer is described that positions the user's hand in a more ergonomically desirable position, i.e., at an angle of about 45° to the work surface. In preferred embodiments, the input device accommodates either a user's left or right hand, and in either case, positions the hand in an ergonomically desirable position. In another embodiment, the length of the input device of the present invention is adjusted for the size of the user's hand. In further embodiments, the input device of the present invention provides a palm rest. Other desirable features included in preferred embodiments include lateral buttons that are positioned one above the other.
    Type: Grant
    Filed: June 14, 2004
    Date of Patent: August 3, 2010
    Assignee: Humanscale Corporation
    Inventors: Manuel Saez, Lachezar Tsvetanov, Maximo Diaz Heer, Jonathan Puleio
  • Patent number: 7717515
    Abstract: A chair having an automatically adjusting resistance to tilt. The chair includes a back support, a frame, a base and a back pivot member, which is pivotally mounted to the frame, and a seat, which is also pivotally mounted to the frame, such that an occupant of the chair adjusts resistance to tilt or reclining of the chair by applying a rearward force to the back support.
    Type: Grant
    Filed: April 24, 2007
    Date of Patent: May 18, 2010
    Assignee: Humanscale Corporation
    Inventors: Manuel Saez, Lachezar Tsvetanov
  • Publication number: 20090213068
    Abstract: An input device for a computer is described that positions the user's hand in a more ergonomically desirable position, i.e., at an angle of about 45° to the work surface. In preferred embodiments, the input device accommodates either a user's left or right hand, and in either case, positions the hand in an ergonomically desirable position. In another embodiment, the length of the input device of the present invention is adjusted for the size of the user's hand. In further embodiments, the input device of the present invention provides a palm rest. Other desirable features included in preferred embodiments include lateral buttons that are positioned one above the other.
    Type: Application
    Filed: February 23, 2009
    Publication date: August 27, 2009
    Applicant: HUMANSCALE CORPORATION
    Inventors: Manuel Saez, Lachezar Tsvetanov, Maximo Diaz Heer, Jonathan Puleio
  • Patent number: 7487940
    Abstract: Disclosed is a stand for a laptop computer or other data display device, wherein the display portion, or monitor, projects upwardly from the data display container. The user can adjust the position of the portable data display container so as to position the top edge of the monitor at the same height as the user's eyes. This position permits the user to maintain better posture when using the data display device. Additionally, the stand of the present invention may provide a rack for restraining cables attached to the data display device. The stand may also have a swivel so that the monitor can be viewed from whatever angle is convenient for the user. Desirably, the stand also includes a document holder and provides an anchor for a security cable.
    Type: Grant
    Filed: June 14, 2004
    Date of Patent: February 10, 2009
    Assignee: Humanscale Corporation
    Inventors: Manuel Saez, Lachezar Tsvetanov, Maximo Diaz Heer
  • Publication number: 20080234856
    Abstract: An adjustable system for mounting a computer component to a surface, including an adjustable horizontal assembly with swiveling mounting structure and an adjustable vertical assembly featuring two sliding extrusions and a stopper wedge engaged with a long screw for efficient mounting of computer components within workplaces.
    Type: Application
    Filed: March 23, 2007
    Publication date: September 25, 2008
    Inventors: Manuel Saez, Stefan Spoerl, Kim ten Hacken, Lachezar Tsvetanov
  • Publication number: 20080173774
    Abstract: The present invention is directed to an accessory holder capable of supporting a plurality of accessories and positioning those accessories in three-dimensions. A preferred embodiment supports the accessories in a curvilinear shape that optimizes the viewing position by the user. The accessories include flat panel displays, touch screens, telephones, and other devices used in an office or home office environment.
    Type: Application
    Filed: January 24, 2007
    Publication date: July 24, 2008
    Inventors: Manuel Saez, Bradley Augustine, Aaron Tsui, Lachezar Tsvetanov
  • Patent number: D690000
    Type: Grant
    Filed: August 23, 2012
    Date of Patent: September 17, 2013
    Assignee: Humanscale Corporation
    Inventors: Stefan Spoerl, Lachezar Tsvetanov
  • Patent number: D696765
    Type: Grant
    Filed: May 29, 2013
    Date of Patent: December 31, 2013
    Assignee: Humanscale Corporation
    Inventors: Stefan Spoerl, Lachezar Tsvetanov