Patents by Inventor Leo Gross

Leo Gross 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: 9784762
    Abstract: A method for determining a value of a local contact potential difference by noncontact atomic force microscopy. For one or more cantilever positions above a surface of a sample: i) determining two distinct voltage values of DC voltage applied between an oscillating cantilever and the sample, and ii) determining, by one or more processors, a value of a local contact potential difference based, at least in part, on the two distinct voltage values that were determined.
    Type: Grant
    Filed: March 3, 2016
    Date of Patent: October 10, 2017
    Assignee: International Business Machines Corporation
    Inventors: Leo Gross, Gerhard Meyer, Bruno Schuler, Wolfram Steurer
  • Publication number: 20160223583
    Abstract: A method for determining a value of a local contact potential difference by noncontact atomic force microscopy. For one or more cantilever positions above a surface of a sample: i) determining two distinct voltage values of DC voltage applied between an oscillating cantilever and the sample, and ii) determining, by one or more processors, a value of a local contact potential difference based, at least in part, on the two distinct voltage values that were determined.
    Type: Application
    Filed: March 3, 2016
    Publication date: August 4, 2016
    Inventors: Leo Gross, Gerhard Meyer, Bruno Schuler, Wolfram Steurer
  • Patent number: 9316668
    Abstract: A method for determining a value of a local contact potential difference by noncontact atomic force microscopy. For one or more cantilever positions above a surface of a sample: i) performing two atomic force microscopy measurements, using an oscillating cantilever, ii) thereby determining two distinct voltage values of DC voltage applied between the cantilever and the sample, and iii) obtaining a value of a local contact potential difference based, at least in part, on the two distinct voltage values determined. Wherein substantially similar distinct values indicate a substantially similar value of frequency shifts of cantilever oscillation, as measured for each of said distinct values.
    Type: Grant
    Filed: October 27, 2014
    Date of Patent: April 19, 2016
    Assignee: International Business Machines Corporation
    Inventors: Leo Gross, Gerhard Meyer, Bruno Schuler, Wolfram Steurer
  • Publication number: 20150121576
    Abstract: A method for determining a value of a local contact potential difference by noncontact atomic force microscopy. For one or more cantilever positions above a surface of a sample: i) performing two atomic force microscopy measurements, using an oscillating cantilever, ii) thereby determining two distinct voltage values of DC voltage applied between the cantilever and the sample, and iii) obtaining a value of a local contact potential difference based, at least in part, on the two distinct voltage values determined. Wherein substantially similar distinct values indicate a substantially similar value of frequency shifts of cantilever oscillation, as measured for each of said distinct values.
    Type: Application
    Filed: October 27, 2014
    Publication date: April 30, 2015
    Inventors: Leo Gross, Gerhard Meyer, Bruno Schuler, Wolfram Steurer
  • Patent number: 5859952
    Abstract: A humidifier, especially for room humidification, has a reservoir for water to be dispersed into the atmosphere, a unit for dispersing the water and a passage between the reservoir and that unit which is provided with a UV radiation generator for sterilizing water before it reaches the unit. The unit can be a heater, an ultrasonic atomizer for the water or a wettable surface over which air is passed.
    Type: Grant
    Filed: April 23, 1997
    Date of Patent: January 12, 1999
    Assignee: Slant/Fin Corporation
    Inventors: Lawrence Levine, Leo Gross, Paul Siller
  • Patent number: 5731894
    Abstract: A multi-purpose objective for use in a compound microscope wherein the microscope has an eyepiece and a multi-purpose processing element in the back focal plane or Fourier plane of the objective and an aperture or slit for the light source situated in the front focal plane or conjugate Fourier plane of the condenser. An aperture specimen stage is disposed between the condenser and objective lenses. The multi-purpose light processing element has a plurality of light processing regions upon a selected region of which the image of the aperture slit is formed. The aperture element is moveable relative to the multi-purpose light processing element so as to direct light onto the selected region of the multi-purpose processing element.
    Type: Grant
    Filed: December 19, 1995
    Date of Patent: March 24, 1998
    Inventor: Leo Gross
  • Patent number: 5677982
    Abstract: A humidifier, especially for room humidification, has a container removably mounted on a base and communicating with a sterilizing chamber to which the water is delivered and in which the water is exposed to a UV lamp with sufficient residence time to effect sterilization. From that chamber the sterile water is delivered to a heating chamber formed in a casting and communicating with a duct in the container from which the steam is supplied to the room. A thermostat on the casting cuts off the heater upon a failure to supply water to the latter. The apparatus can have a humidistat for turning on and off the heater.
    Type: Grant
    Filed: November 3, 1995
    Date of Patent: October 14, 1997
    Assignee: Slant/Fin Corporation
    Inventors: Lawrence Levine, Leo Gross, Paul Siller
  • Patent number: 4636685
    Abstract: An arc discharge device such as a fluorescent lamp comprising a lamp envelope having an inner phosphor coating. An arc spreading assembly is disposed in or in close proximity to the lamp envelope. The lamp envelope is of an oval or elliptical cross-section and the major axis is a multiple of the minor axis of the lamp's cross-sectional shape. The lamp envelope is strengthened mechanically and protected against atmospheric pressure by being enclosed in an evacuated outer cylindrical protective envelope.
    Type: Grant
    Filed: September 30, 1983
    Date of Patent: January 13, 1987
    Assignee: Spellman High Voltage Electronics Corp.
    Inventors: S. Merrill Skeist, Leo Gross
  • Patent number: 4514662
    Abstract: An arc discharge device such as a fluorescent lamp without partitions, such as a double walled hemisphere or portion thereof, a double walled conical section, a double walled cylinder, which are more intensely and fully illuminated by magnetic arc spreading techniques. The magnetic field is concentrated in the region just beyond the source of the arc to maximize the spreading effect.
    Type: Grant
    Filed: February 17, 1981
    Date of Patent: April 30, 1985
    Inventors: S. Merrill Skeist, Leo Gross
  • Patent number: 4443734
    Abstract: A high pressure discharge lamp having cylindrical or elliptical envelope containing a rare gas atmosphere as the starter gas and mercury and other volatile metals. The luminous output of this high intensity discharge lamp is increased by the presence of a magnetic field which spreads the arc discharge throughout the lamp envelope.
    Type: Grant
    Filed: February 4, 1980
    Date of Patent: April 17, 1984
    Assignee: Leo Gross
    Inventors: Leo Gross, S. Merrill Skeist
  • Patent number: 4439021
    Abstract: One or more Fresnel prisms appropriately mounted integrally in the rear window (or windows) of a motor vehicle expands the drivers' field of view, eliminating blind spots both to the right and left rear areas of the vehicle. The viewing system, used in conjunction with an internally mounted rear viewing mirror, overcomes the necessity of providing either or both right and left side outboard rear viewing mirrors.
    Type: Grant
    Filed: June 8, 1981
    Date of Patent: March 27, 1984
    Inventor: Leo Gross
  • Patent number: 4341977
    Abstract: An arc discharge device such as a fluorescent lamp comprising an envelope having an inner phosphor coating. Arc discharge filaments are disposed in said envelope together with a rare gas such as argon and an arc spreading initiator gas such as a combination of nitrogen and dichloro-difluoro ethane.
    Type: Grant
    Filed: February 4, 1980
    Date of Patent: July 27, 1982
    Inventors: Leo Gross, S. Merrill Skeist
  • Patent number: 4341979
    Abstract: An arc discharge device such as a fluorescent lamp comprising an outer envelope having an inner phosphor coating. A rotating field magnetic arc spreading device is disposed in close proximity to the envelope at each end of the lamp envelope. The envelope has a circular cross section.
    Type: Grant
    Filed: February 14, 1980
    Date of Patent: July 27, 1982
    Inventors: Leo Gross, S. Merrill Skeist
  • Patent number: 4311943
    Abstract: An arc discharge device such as a fluorescent lamp comprising an outer envelope having an inner phosphor coating. An arc spreading assembly is disposed in said envelope. There is provided a recombination structure in the form of fine glass or quartz fibers disposed in the envelope.
    Type: Grant
    Filed: November 13, 1979
    Date of Patent: January 19, 1982
    Assignee: Spellman High Voltage Electronics Corp.
    Inventors: Leo Gross, S. Merrill Skeist
  • Patent number: 4311942
    Abstract: A compact fluorescent lamp with a screw-in plug to fit conventional screw sockets which operates at 20-30 watts and provides the lumen output of a 75-100 watt lamp. The lamp is essentially a hollow cylinder with a glass envelope for the two outer walls. The space between the two outer walls is partitioned to constrain the arc discharge to follow a designated path around the inner surface of the lamp. Efficiency is promoted by novel ballast design. The screw-in fluorescent lamp contains a coil in the center of the lamp which creates a diverging magnetic field which causes the arc discharge to spread and may also serve the dual purpose of limiting arc current. Arc spreading coils of several designs are disclosed to provide oriented diverging magnetic fields, rotating diverging magnetic fields and magnetic fields shaped to the lamp envelope with which they are employed.
    Type: Grant
    Filed: June 4, 1979
    Date of Patent: January 19, 1982
    Assignee: Spellman High Voltage Electronics Corp.
    Inventors: S. Merrill Skeist, Leo Gross
  • Patent number: 4187446
    Abstract: A compact fluorescent lamp with a screw-in plug to fit conventional screw sockets which operates at 20-30 watts and provides the lumen output of a 75-100 watt lamp. The lamp is essentially a hollow cylinder with a glass envelope for the two outer walls. The space between the two outer walls is partitioned to constrain the arc discharge to follow a zigzag path around the surface of the lamp. The design parameters are such that the lumen output per square inch of phosphor is greater than from conventional tubular fluorescents. Efficiency is promoted by novel ballast design. The ballast fits into the hollow center of the lamp. The ballast is constructed of special shape to spread the arc within the evacuated glass envelope, thus reducing the current density and the total current, but maintaining the lumen output of the phosphor.
    Type: Grant
    Filed: September 21, 1977
    Date of Patent: February 5, 1980
    Inventors: Leo Gross, Merrill S. Skeist
  • Patent number: D380820
    Type: Grant
    Filed: November 3, 1995
    Date of Patent: July 8, 1997
    Assignee: Slant/Fin Corporation
    Inventors: Lawrence Levine, Leo Gross, Paul Siller