Patents by Inventor Stephen Charles Witkus

Stephen Charles Witkus 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: 20180043557
    Abstract: A handle for a razor cartridge is provided.
    Type: Application
    Filed: August 11, 2016
    Publication date: February 15, 2018
    Inventors: Hong Lu, Stephen Charles Witkus, Alexander Stephen Forti, Huibin Gong
  • Publication number: 20180043556
    Abstract: A handle for a razor cartridge is provided.
    Type: Application
    Filed: August 11, 2016
    Publication date: February 15, 2018
    Inventors: Hong Lu, Stephen Charles Witkus, Alexander Stephen Forti, Huibin Gong
  • Publication number: 20180043553
    Abstract: A handle for a razor cartridge is provided.
    Type: Application
    Filed: August 11, 2016
    Publication date: February 15, 2018
    Inventors: Hong Lu, Stephen Charles Witkus, Alexander Stephen Forti, Huibin Gong
  • Publication number: 20180043554
    Abstract: A handle for a razor cartridge is provided.
    Type: Application
    Filed: August 11, 2016
    Publication date: February 15, 2018
    Inventors: Hong Lu, Stephen Charles Witkus, Alexander Stephen Forti, Huibin Gong
  • Publication number: 20180021966
    Abstract: A novel guard structure of a razor is shown including rows of elongated hard plastic protrusions having rounded (e.g., not sharp or pointed) tips arranged on a tip curved profile. The rounded valleys between the protrusions are also arranged on a curved profile which may be different than that of the tip curved profile. The valleys encompass an inner protrusion volume which increases going back to front end of the guard structure. Preferably, the front end volumes are larger than the back end inner protrusion volumes to assist in trapping and distributing shaving aid. In one embodiment having six protrusions, the inner protrusion volume between a second and third protrusion is the largest, while a volume between first and second protrusion is the second largest volume. The guard structure is disposed in front of the blades formed within the housing and may extend past the front end of the housing.
    Type: Application
    Filed: October 2, 2017
    Publication date: January 25, 2018
    Inventors: Stephen Charles Witkus, Neil Lettenberger, Armando Miguel Hurtado
  • Patent number: 9802328
    Abstract: A novel guard structure of a razor is shown including rows of elongated hard plastic protrusions having rounded (e.g., not sharp or pointed) tips arranged on a tip curved profile. The rounded valleys between the protrusions are also arranged on a curved profile which may be different than that of the tip curved profile. The valleys encompass an inner protrusion volume which increases going back to front end of the guard structure. Preferably, the front end volumes are larger than the back end inner protrusion volumes to assist in trapping and distributing shaving aid. In one embodiment having six protrusions, the inner protrusion volume between a second and third protrusion is the largest, while a volume between first and second protrusion is the second largest volume. The guard structure is disposed in front of the blades formed within the housing and may extend past the front end of the housing.
    Type: Grant
    Filed: November 7, 2014
    Date of Patent: October 31, 2017
    Assignee: The Gillette Company LLC
    Inventors: Stephen Charles Witkus, Neil Lettenberger, Armando Miguel Hurtado
  • Publication number: 20150128424
    Abstract: A novel guard structure of a razor is shown including rows of elongated hard plastic protrusions having rounded (e.g., not sharp or pointed) tips arranged on a tip curved profile. The rounded valleys between the protrusions are also arranged on a curved profile which may be different than that of the tip curved profile. The valleys encompass an inner protrusion volume which increases going back to front end of the guard structure. Preferably, the front end volumes are larger than the back end inner protrusion volumes to assist in trapping and distributing having aid. In one embodiment having six protrusions, the inner protrusion volume between a second and third protrusion is the largest, while a volume between first and second protrusion is the second largest volume. The guard structure is disposed in front of the blades which are formed within the housing and may desirably extend past the front end of the housing.
    Type: Application
    Filed: November 7, 2014
    Publication date: May 14, 2015
    Inventors: Stephen Charles Witkus, Neil Lettenberger, Armando Miguel Hurtado
  • Publication number: 20140000114
    Abstract: A wet shaving razor cartridge having a cap, a guard in front of the cap, with the guard having a top surface bowed in an upward direction from a pair of lateral ends of the guard toward a mid-line of the guard. A blade is between the guard and the cap. The blade has an elongated edge bowed in an upward direction from a pair of lateral ends of the blade toward a mid-line of the blade. A bowed platform is between the guard and the cap. The platform is bowed in an upward direction from a pair of lateral platforms toward a center platform. A top surface of the center platform is positioned above a plane tangent to the pair of lateral end platforms.
    Type: Application
    Filed: April 22, 2013
    Publication date: January 2, 2014
    Applicant: The Gillette Company
    Inventors: Christian Reber Wester, Stephen Charles Witkus
  • Patent number: 8448339
    Abstract: A shaving cartridge with a housing, a cap, and a guard. The guard has an upper surface. The cap has a top surface, a front edge, and an arcuate surface connecting the top surface and the front edge. A first blade between the cap and the guard has a cutting edge nearest the cap. A second blade between the cap and the guard has a cutting edge nearest the guard. The first and second blades define a blade plane tangent to the cutting edges. The blade plane is positioned below both (i) the surface of the guard and (ii) an intersection point of the front edge and the top surface of the cap.
    Type: Grant
    Filed: August 3, 2010
    Date of Patent: May 28, 2013
    Assignee: The Gillette Company
    Inventors: Vincent Paul Walker, Jr., Stephen Charles Witkus
  • Patent number: 8413334
    Abstract: A shaving cartridge with a housing, at least one blade mounted to the housing, and a guard having a plurality of spaced apart projections with an upper surface. The projections define a plurality of open slots extending transverse to the blade. The open slots have a lower surface extending between the plurality of projections. The open slots have a slot depth between the lower surface and the upper surface of about 0.10 mm to about 0.5 mm.
    Type: Grant
    Filed: August 3, 2010
    Date of Patent: April 9, 2013
    Assignee: The Gillette Company
    Inventors: Vincent Paul Walker, Jr., Stephen Charles Witkus
  • Publication number: 20120030947
    Abstract: A shaving cartridge with a housing, at least one blade mounted to the housing, and a guard having a plurality of spaced apart projections with an upper surface. The projections define a plurality of open slots extending transverse to the blade. The open slots have a lower surface extending between the plurality of projections. The open slots have a slot depth between the lower surface and the upper surface of about 0.10 mm to about 0.5 mm.
    Type: Application
    Filed: August 3, 2010
    Publication date: February 9, 2012
    Inventors: Vincent Paul Walker, JR., Stephen Charles Witkus
  • Publication number: 20120030948
    Abstract: A shaving cartridge with a housing, a cap, and a guard. The guard has an upper surface. The cap has a top surface, a front edge, and an arcuate surface connecting the top surface and the front edge. A first blade between the cap and the guard has a cutting edge nearest the cap. A second blade between the cap and the guard has a cutting edge nearest the guard. The first and second blades define a blade plane tangent to the cutting edges. The blade plane is positioned below both (i) the surface of the guard and (ii) an intersection point of the front edge and the top surface of the cap.
    Type: Application
    Filed: August 3, 2010
    Publication date: February 9, 2012
    Inventors: Vincent Walker, JR., Stephen Charles Witkus
  • Publication number: 20110203120
    Abstract: The invention discloses a novel razor cartridge including a housing having a top, front and back areas, and a bottom, and a plurality of posts each having an end portion extending towards the housing bottom and at least one blade disposed in the housing. Each blade includes a cutting edge and a bottom portion having front and back sides wherein the bottom portion of the blade is disposed adjacent at least one of the plurality of posts. The posts are desirably made of plastic. The end portions of the posts are crushed to provide contact and support to the front and/or back side of the bottom portion of the blades in the housing. The crush force may be up to about 100 lbs-force and the posts are reduced in height by about 20% to about 95%. The crushed posts retain the blades in the housing restricting fore and aft blade movement.
    Type: Application
    Filed: February 17, 2011
    Publication date: August 25, 2011
    Inventor: Stephen Charles Witkus
  • Patent number: D630797
    Type: Grant
    Filed: March 2, 2010
    Date of Patent: January 11, 2011
    Assignee: The Gillette Company
    Inventor: Stephen Charles Witkus
  • Patent number: D633254
    Type: Grant
    Filed: November 24, 2010
    Date of Patent: February 22, 2011
    Assignee: The Gillette Company
    Inventor: Stephen Charles Witkus
  • Patent number: D741012
    Type: Grant
    Filed: November 13, 2013
    Date of Patent: October 13, 2015
    Assignee: The Gillette Company
    Inventors: Stephen Charles Witkus, Neil Lettenberger, Armando Miguel Hurtado
  • Patent number: D741013
    Type: Grant
    Filed: November 13, 2013
    Date of Patent: October 13, 2015
    Assignee: The Gillette Company
    Inventors: Stephen Charles Witkus, Neil Lettenberger, Armando Miguel Hurtado
  • Patent number: D741546
    Type: Grant
    Filed: November 13, 2013
    Date of Patent: October 20, 2015
    Assignee: The Gillette Company
    Inventors: Stephen Charles Witkus, Neil Lettenberger, Armando Miguel Hurtado