system: You are a contract-analysis assistant performing a span-extraction task. You are given an excerpt from a commercial contract and the name of a clause type to locate within it.

Return the exact text of the requested clause, copied verbatim from the excerpt — identical wording and punctuation, with no paraphrasing, summarising, explanation, or added commentary.

The excerpt is one window of a much longer contract and often will not contain the requested clause. If the requested clause does not appear in this excerpt, respond with exactly: Not found.

Output only the extracted clause text, or the exact string `Not found.` — nothing else.

user: Contract excerpt:
"""
Exhibit 10.13 COLLABORATION AGREEMENT THIS COLLABORATION AGREEMENT (the "Agreement") is entered into as of November 2, 2012 (the "Effective Date") by and between BIOCEPT, INC., a California corporation having an address of 5810 Nancy Ridge Drive, Suite 150, San Diego, CA 92121 ("Biocept"), and LIFE TECHNOLOGIES CORPORATION, a Delaware corporation having an address of 5791 Van Allen Way, Carlsbad, California 92008 ("Life Technologies"). WHEREAS, Life Technologies, through its Medical Sciences Division, is engaged in the development and commercialization of diagnostic systems, tests and laboratory services, including in oncology; WHEREAS, Biocept has developed expertise and proprietary technology in enrichment, extraction and analysis of circulating tumor cells (CTCs) for use in laboratory developed tests used for the non-invasive and early stage detection and characterization of primary, metastatic or recurrent cancers; and WHEREAS, Life Technologies and Biocept desire to collaborate so that Biocept will develop and commercialize one or more Tests, as defined herein, for Non-Small Cell Lung Cancer (NSCLC), using their respective technologies and expertise, on the terms and subject to the conditions set forth herein. Life Technologies and Biocept will both promote the test and perform different components of the test, and Life Technologies will provide test results in the form of reports to physicians. NOW, THEREFORE, in consideration of the foregoing premises and the mutual covenants contained herein, and intending to be legally bound, the parties hereby agree as follows: 1. DEFINITIONS 1.1 "Affiliate" shall mean any company or entity controlled by, controlling, or under common control with a party hereto and shall include any company more than 50% of whose voting stock or participating profit interest is owned or controlled, directly or indirectly, by a party, and any company which owns or controls, directly or indirectly, more than 50% of the voting stock of a party. 1.2 "Assay" shall mean Biocept's OncoCEE-LU™ (and OncoCEE-LU™ with Mutation Analysis) laboratory developed assay for characterization and profiling of CTCs from NSCLC patients, which shall incorporate, as Phase 1, CTC enumeration by cytokeratin and CD45 (and CEE-Enhanced™ when available), EML4/Alk1 fusions and EGFR amplification by fluorescence in situ hybridization (determined by Biocept); and as Phase 2, the additional detection of mutations for relevant genes, e.g., K-RAS, EGFR and B-RAF, as agreed by the parties, on captured CTCs and/or cell-free circulating DNA, as agreed by the parties, and employing technologies that potentially may include Biocept's Selector technology, and any improvements or enhancements thereto, exclusive of new analytes (which are discussed in Section 3.5(f) under Collaboration Assays) or applications to primary screening. 1.3 "Biocept Trademarks" shall mean Biocept, Inc., "OncoCEE-LU ", "OncoCEE™", "CEE-Sure ", CEE- Enhanced™", and/or such other trademarks and trade names owned or licensed, and used, by Biocept and/or its Affiliates in the Territory to identify the Tests, in each case, whether or not registered. 1.4 "Life Technologies Trademarks," shall mean Life Technologies , Life Technologies Medical Sciences and/or such other trademarks and trade names owned or licensed and used by Life Technologies to identify the Tests, in each case, whether or not registered. 1.5 "CLIA" shall mean the Clinical Laboratory Improvement Amendments of 1988, as it may be amended from time to time. 1.6 "Collaboration" shall have the meaning provided Section 3.1. 1.7 "Collaboration Assay(s)" shall have the meaning provided in Section 3.5(e). 1.8 "CPT Code" shall mean the American Medical Association's ("AMA") "Current Procedural Terminology" as published in the AMA's CPT Process Manual, Fourth Edition and any such future editions, for procedures used in performance of the Assay, and amounts reimbursed by Medicare for such procedures for location 99, as modified annually. 1.9 "Designated Executive Officer" shall mean the executive officers of each party designated in writing be each party as being responsible for resolving disputes related to the Collaboration, which shall initially be David Hale on behalf of Biocept and Ronnie Andrews on behalf of Life Technologies. 1.10 "FDA" shall mean the United States Food and Drug Administration, or any successor federal agency thereto. 1.11 "HIPAA" shall mean, collectively, the Health Insurance Portability and Accountability Act of 1996, as amended, and all regulations promulgated thereunder at 45 C.F.R. parts 160 through 164, and the Health Information Technology for Economic and Clinical Health Act of 2009 and related regulations and guidelines. 1.12 "Intellectual Property Rights" means all now or hereafter existing patents, patent applications, copyrights, trademarks (including service marks), trade secrets, know-how, mask work rights and design rights, whether registered or unregistered, and all rights or forms of protection of a similar nature having equivalent or similar effect to any of
"""

Extract the exact clause related to "Ip Ownership Assignment" from the excerpt above.

assistant: Not found.