Patents by Inventor Mark A. Wojtkiewicz

Mark A. Wojtkiewicz 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).

  • Publication number: 20100144236
    Abstract: The present invention relates to an activity system that can be used with a supply of fluid, such as water. In particular, the present invention relates to an activity system that includes a supply unit or station and an activity unit that can be used with the supply unit. The supply unit is configured to supply a fluid to the activity unit station when a user engages the activity unit with the supply unit.
    Type: Application
    Filed: December 9, 2008
    Publication date: June 10, 2010
    Inventors: Ronald Asbach, Mark Wojtkiewicz
  • Publication number: 20080096463
    Abstract: Disclosed herein is an activity play set including an upper cabinet portion telescopically movable with respect to a lower cabinet portion. The play set is reconfigurable between a collapsed, lower configuration and an extended, higher configuration. A latch mechanism secures the upper cabinet portion in position relative to the lower cabinet portion. The latch mechanism is fixed to the lower cabinet portion and includes outwardly-biased slide members. As the upper cabinet portion and lower cabinet portion slide relative to each other, the outwardly-biased slide member ends contact and slide along slide walls of the upper cabinet portion. Furthermore, the slide walls of the upper cabinet portion include lock openings to receive the slide member ends. To release the latch mechanism to permit the upper cabinet portion to slide relative to the lower cabinet portion, the slide members are compressed inward to retract the slide member ends from the lock openings in the slide walls.
    Type: Application
    Filed: October 18, 2006
    Publication date: April 24, 2008
    Applicant: MATTEL, INC.
    Inventors: Mark A. Wojtkiewicz, James G. Brumagin
  • Patent number: 6964634
    Abstract: A base releasably coupleable to a pogo stick tip for added stability and prolonged enjoyment of the pogo stick.
    Type: Grant
    Filed: October 15, 2001
    Date of Patent: November 15, 2005
    Assignee: Mattel, Inc.
    Inventors: Mark Wojtkiewicz, David E. Grober, David G. Waples
  • Patent number: 6877501
    Abstract: A ball launching apparatus configured to launch balls to a user. The ball launching apparatus is configured such that a user may change an angle of trajectory T of launched balls by simply resting the ball launching apparatus on one of two different base portions. The ball launching apparatus is configured to receive, feed, and launch balls having different shapes, such as baseballs and footballs. A ball feed mechanism of the ball launching apparatus is driven by ball propulsion mechanism of the ball launching apparatus.
    Type: Grant
    Filed: August 5, 2003
    Date of Patent: April 12, 2005
    Assignee: Mattel, Inc.
    Inventors: Mark Wojtkiewicz, Ross Rumfola, III, Kevin R. Shinn, Dave Moomaw
  • Patent number: 6857965
    Abstract: A suspension swing including a seat and a recline mechanism is disclosed. The angle of inclination of the seat can be adjusted using the recline mechanism. In one embodiment, the recline mechanism includes a movable member that is coupled to the seat for movement relative thereto.
    Type: Grant
    Filed: March 5, 2003
    Date of Patent: February 22, 2005
    Assignee: Mattel, Inc.
    Inventors: Peter Pook, Gerald P. Sitarski, Mark Wojtkiewicz
  • Publication number: 20040198510
    Abstract: A suspension swing including a seat and a recline mechanism is disclosed. The angle of inclination of the seat can be adjusted using the recline mechanism. In one embodiment, the recline mechanism includes a movable member that is coupled to the seat for movement relative thereto.
    Type: Application
    Filed: March 5, 2003
    Publication date: October 7, 2004
    Inventors: Peter Pook, Gerald P. Sitarski, Mark Wojtkiewicz
  • Publication number: 20040084041
    Abstract: A ball launching apparatus configured to launch balls to a user. The ball launching apparatus is configured such that a user may change an angle of trajectory T of launched balls by simply resting the ball launching apparatus on one of two different base portions. The ball launching apparatus is configured to receive, feed, and launch balls having different shapes, such as baseballs and footballs. A ball feed mechanism of the ball launching apparatus is driven by ball propulsion mechanism of the ball launching apparatus.
    Type: Application
    Filed: August 5, 2003
    Publication date: May 6, 2004
    Inventors: Mark Wojtkiewicz, Ross Rumfola, Kevin R. Shinn, Dave Moomaw
  • Patent number: 6637422
    Abstract: A ball launching apparatus configured to launch balls to a user. The ball launching apparatus is configured such that a user may change an angle of trajectory T of launched balls by simply resting the ball launching apparatus on one of two different base portions. The ball launching apparatus is configured to receive, feed, and launch balls having different shapes, such as baseballs and footballs. A ball feed mechanism of the ball launching apparatus is driven by ball propulsion mechanism of the ball launching apparatus.
    Type: Grant
    Filed: December 21, 2001
    Date of Patent: October 28, 2003
    Assignee: Mattel, Inc.
    Inventors: Mark Wojtkiewicz, Ross Rumfola, III, Kevin R. Shinn, Dave Moomaw
  • Publication number: 20030116151
    Abstract: A ball launching apparatus configured to launch balls to a user. The ball launching apparatus is configured such that a user may change an angle of trajectory T of launched balls by simply resting the ball launching apparatus on one of two different base portions. The ball launching apparatus is configured to receive, feed, and launch balls having different shapes, such as baseballs and footballs. A ball feed mechanism of the ball launching apparatus is driven by ball propulsion mechanism of the ball launching apparatus.
    Type: Application
    Filed: December 21, 2001
    Publication date: June 26, 2003
    Inventors: Mark Wojtkiewicz, Ross Rumfola, Kevin R. Shinn, Dave Moomaw
  • Publication number: 20030073547
    Abstract: A base releasably coupleable to a pogo stick tip for added stability and prolonged enjoyment of the pogo stick.
    Type: Application
    Filed: October 15, 2001
    Publication date: April 17, 2003
    Inventors: Mark Wojtkiewicz, David E. Grober, David G. Waples
  • Publication number: 20030069093
    Abstract: A sports training device having a line, an anchor coupled to a first end of the line, a glove coupled to a second end of the line, and a ball slidably mounted on the line. The anchor is configured to engage with a stationary support surface so as to retain the first end of the line in a stationary position. In use, one user will hold the glove away from the anchor so as to tension the line and then propel the ball along the line toward the opposite end. Another user can then strike the sliding ball with a bat, or other striking implement, and the one user can catch the ball with the glove.
    Type: Application
    Filed: October 9, 2001
    Publication date: April 10, 2003
    Inventors: Mark Wojtkiewicz, David Grober, David G. Waples, Ross Rumfola
  • Patent number: 5275464
    Abstract: A vehicle booster seat includes a base adapted to be supported on a vehicle seat for supporting a child on the base in an elevated position relative to the vehicle seat; first and second side bolsters on the base extending upwardly from the base for laterally restraining the child; first and second slots in the first and second side bolsters for receiving the vehicle seat belt and guiding the seat belt over the child to restrain the child in the booster seat, and secure the booster seat to the vehicle seat; a removable shield for restraining a child in the booster seat with a lap belt only, the shield including a generally U-shaped shield body having first and second tongue members extending therefrom adapted to slidingly engage the first and second slots in the base respectively for receiving the U-shaped shield in the base; and a guide in the shield body for receiving a seat belt for securing the U-shaped shield to the base and securing the base relative to the vehicle seat.
    Type: Grant
    Filed: April 22, 1993
    Date of Patent: January 4, 1994
    Assignee: Fisher-Price, Inc.
    Inventors: Anthony E. Eichhorn, Frederick L. Schreier, Mark A. Wojtkiewicz
  • Patent number: D333599
    Type: Grant
    Filed: October 3, 1990
    Date of Patent: March 2, 1993
    Assignee: Fisher Price, Inc.
    Inventor: Mark A. Wojtkiewicz
  • Patent number: D671994
    Type: Grant
    Filed: July 11, 2011
    Date of Patent: December 4, 2012
    Assignee: Mattel, Inc.
    Inventor: Mark A. Wojtkiewicz