Patent 8362960

Prior art

Earlier patents, publications, and products that may anticipate or render the claims unpatentable.

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Prior art

Earlier patents, publications, and products that may anticipate or render the claims unpatentable.

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To identify the most relevant prior art for US patent 8,362,960, a search was conducted on Google Patents to retrieve the "References Cited" by the patent. The following prior art documents were explicitly cited in US8362960:

U.S. Patent Documents:

  • US20050275585A1

    • Full Citation: US2005/0275585 A1 (ANGUERA JAUME [ES] et al) 2005-12-15
    • Publication Date: 2005-12-15
    • Brief Description: This patent application describes an antenna device for wireless communication systems, particularly for handheld devices, where the antenna geometry is designed as a space-filling curve (SFC) or a fractal shape to achieve miniaturization and multiband behavior. It focuses on using these geometries to improve efficiency and reduce the size of the antenna for integration into compact devices.
    • Potential Anticipation (35 U.S.C. § 102): This document potentially anticipates elements of claims related to antenna miniaturization through the use of space-filling curves, box-counting curves, or grid-dimension curves. For example, the general concept of shaping an antenna with an SFC, as mentioned in the detailed description of US8362960 for miniaturization, appears to be an overlapping theme. This could potentially anticipate aspects of claims describing the physical characteristics of the antennas.

  • US6975269B2

    • Full Citation: US6975269B2 (PUENTE BALIARDA CARLES [ES]) 2005-12-13
    • Publication Date: 2005-12-13
    • Brief Description: This patent describes fractal antennas and their use in wireless communication, particularly for achieving multiband operation in compact devices. It details how fractal geometries can provide antennas with a consistent radioelectric behavior across multiple frequency bands.
    • Potential Anticipation (35 U.S.C. § 102): Similar to US2005/0275585 A1, this patent could potentially anticipate claims relating to the use of fractal geometries, or more broadly, the principle of miniaturization and multiband operation through complex antenna shapes, if those claims in US8362960 are broadly construed without specific distinguishing features related to the slot antenna or isolation methods.

  • US7327318B2

    • Full Citation: US7327318B2 (PUENTE CARLES [ES] et al) 2008-02-05
    • Publication Date: 2008-02-05
    • Brief Description: This patent focuses on multiband antennas, particularly those with a multilevel structure, where the antenna elements are composed of self-similar geometrical shapes. It aims to provide small-sized antennas capable of operating across several frequency bands.
    • Potential Anticipation (35 U.S.C. § 102): This reference might anticipate claims in US8362960 related to multilevel antenna structures and their resulting multiband behavior and miniaturization, especially if the claims do not specifically incorporate the novel aspects of the slot antenna or the isolation enhancement techniques taught in US8362960.

  • US20050270220A1

    • Full Citation: US2005/0270220 A1 (ANGUERA JAUME [ES] et al) 2005-12-08
    • Publication Date: 2005-12-08
    • Brief Description: This patent application discusses miniaturized multiband antennas, potentially incorporating complex geometries or space-filling curves for handheld devices.
    • Potential Anticipation (35 U.S.C. § 102): This reference could potentially anticipate aspects of claims in US8362960 concerning miniaturized multiband antennas, particularly those that broadly describe the antenna's geometry for size reduction, without focusing on the specific slot antenna configuration or the isolation enhancement methods.

  • US20060012526A1

    • Full Citation: US2006/0012526 A1 (ANGUERA JAUME [ES] et al) 2006-01-19
    • Publication Date: 2006-01-19
    • Brief Description: This patent application describes an antenna for wireless communication devices, particularly focusing on compact antenna designs for multiband operation.
    • Potential Anticipation (35 U.S.C. § 102): This reference may anticipate general claims in US8362960 regarding compact or multiband antennas, especially if those claims are not limited to the specific slot antenna implementation or the isolation techniques for two antennas as described in the present invention.

  • US20070018898A1

    • Full Citation: US2007/0018898 A1 (ANGUERA JAUME [ES] et al) 2007-01-25
    • Publication Date: 2007-01-25
    • Brief Description: This patent application details a planar antenna suitable for wireless communication devices, often employing complex geometries for size reduction and multiband characteristics.
    • Potential Anticipation (35 U.S.C. § 102): This reference, like the others from Anguera et al., could anticipate broad claims in US8362960 pertaining to planar and miniaturized multiband antennas, if they lack the specific inventive elements related to the slot antenna and isolation.

  • US20070115190A1

    • Full Citation: US2007/0115190 A1 (ANGUERA JAUME [ES] et al) 2007-05-24
    • Publication Date: 2007-05-24
    • Brief Description: This patent application describes miniaturized antennas for wireless communication, focusing on space-filling curve geometries to achieve compact and multiband designs.
    • Potential Anticipation (35 U.S.C. § 102): This document potentially anticipates claims in US8362960 that broadly describe the use of space-filling curves for antenna miniaturization and multiband operation.

  • US8115686B2

    • Full Citation: US8115686B2 (ANGUERA JAUME [ES] et al) 2012-02-14
    • Publication Date: 2012-02-14
    • Brief Description: This is the parent application (U.S. patent application Ser. No. 11/988,888) from which US8362960 is a continuation. It describes a handheld device with a first and a second antenna, where the second antenna is a slot antenna, and methods to enhance isolation between them.
    • Potential Anticipation (35 U.S.C. § 102): As the parent application, US8115686B2 describes substantially the same invention. Under 35 U.S.C. § 102, a continuation patent's claims are generally entitled to the filing date of the parent application and therefore, the parent itself would not be considered prior art against the continuation claims. However, any subject matter disclosed in the parent that is not claimed in the continuation (and is also not part of a separate invention) could, in principle, be prior art if the effective filing dates differ such that it falls outside the continuation relationship's benefit. For the purpose of identifying prior art, it is listed here, but its effect on patentability would be different due to the parent-continuation relationship.

Foreign Patent Documents:

  • EP1867175A2

    • Full Citation: EP1867175A2 (FRACTUS SA [ES]) 2007-12-19
    • Publication Date: 2007-12-19
    • Brief Description: This European patent application by Fractus SA details a handheld device with multiple antennas and methods for enhancing isolation between them. It specifically discusses the use of a slot antenna for one of the services.
    • Potential Anticipation (35 U.S.C. § 102): This document is a European counterpart or related application to US8362960. It likely discloses similar aspects of the invention, including the use of a slot antenna as a second antenna and methods for improving isolation. Therefore, it could potentially anticipate many aspects of claims related to the device structure and isolation methods if it has an earlier effective filing date and covers the same inventive subject matter.

  • WO2007009804A2

    • Full Citation: WO2007/009804 A2 (FRACTUS SA [ES]; ANGUERA JAUME [ES] et al) 2007-01-25
    • Publication Date: 2007-01-25
    • Brief Description: This PCT application, also by Fractus SA and inventors including Jaume Anguera, describes antennas for handheld devices, likely encompassing miniaturization techniques and potentially multi-antenna systems with isolation considerations.
    • Potential Anticipation (35 U.S.C. § 102): As a PCT application from the same assignee and including some of the same inventors, this document likely covers similar ground as the US patent applications cited, potentially anticipating claims related to miniaturized or multiband antenna designs, and potentially broader aspects of multi-antenna handheld devices.

  • WO2007009803A2

    • Full Citation: WO2007/009803 A2 (FRACTUS SA [ES]; ANGUERA JAUME [ES] et al) 2007-01-25
    • Publication Date: 2007-01-25
    • Brief Description: Another PCT application by Fractus SA and related inventors, likely focusing on antenna technology for handheld devices, including miniaturization and performance optimization.
    • Potential Anticipation (35 U.S.C. § 102): Similar to WO2007/009804 A2, this reference may anticipate general claims in US8362960 concerning compact and efficient antenna designs for handheld devices.

Most Relevant Prior Art Assessment:

Given the patent's focus on a handheld device with two antennas, specifically a slot antenna as the second antenna, and methods of enhancing isolation, the most relevant prior art would be those that explicitly address these combinations or offer solutions to these problems.

  • US8115686B2 is the most directly relevant as it is the parent application. While not technically "prior art" in the anticipation sense for a continuation's valid claims, it forms the foundational disclosure for US8362960 and would be critical for understanding the prosecution history and any distinctions made.
  • EP1867175A2 is highly relevant because its description of a "handheld device with multiple antennas and methods for enhancing isolation between them" and the explicit mention of a slot antenna directly aligns with the core inventive concepts of US8362960. If this document has an earlier effective filing date and discloses the elements of the claims, it could directly anticipate claims 1, 15, 20, and 23.
  • The other US and PCT patent applications (e.g., US2005/0275585 A1, US6975269B2, US7327318B2, and the other Anguera et al. applications) are relevant for establishing the state of the art regarding miniaturized, multiband, and fractal/multilevel antennas. They lay the groundwork for antenna design principles that the inventors of US8362960 built upon. However, they are less likely to directly anticipate the specific combination of a slot antenna for the second antenna and the detailed isolation enhancement techniques described in US8362960 unless very broadly interpreted. They would be more pertinent for obviousness arguments under 35 U.S.C. § 103, particularly if combined to achieve the claimed invention.

For specific anticipation under 35 U.S.C. § 102, EP1867175A2 would be the strongest candidate due to its direct relevance to the dual-antenna, slot antenna, and isolation enhancement features. The US patent applications focusing on space-filling curves and fractal antennas would anticipate claims that solely rely on those antenna geometries for miniaturization, without incorporating the specific dual-antenna configuration and isolation methods of US8362960.

Generated 6/13/2026, 6:01:45 AM