K/S HIMPP (KommanditSelskabet Hearing Instrument Manufacturers Patent Partnership) is a Danish limited partnership, established on August 28, 1996. Its partners develop, manufacture and sell hearing instruments and components. HIMPP partners provide more than 90 % of all hearing instruments worldwide.

K/S HIMPP owns a portfolio of patents relevant to hearing instruments purchased from third parties, and makes these patents available to anyone interested at fair, reasonable and nondiscriminatory terms.

K/S HIMPP also monitors hearing aid related patent activity by parties other than HIMPP partners, with a view to possible opposition of patents or applications whose scope is unwarranted in light of known prior art to ensure the continued unhindered use and development of IPR to the benefit of the hearing impaired.