Hanley Flight & Zimmerman (HFZ) is a Chicago-based patent law firm with decades of combined technical expertise and legal experience. They are trusted by some of the most innovative clients in the industry and have a proven track record of delivering top-notch results. HFZ offers a range of services, including patent prosecution, patent drafting, and patent portfolio management.

They have helped their clients secure and protect their intellectual property by writing and filing over one hundred patents. With an innovative approach and a focus on cost effectiveness, HFZ has become a go-to firm for patent prosecution. Moreover, they provide sound advice to support their clients' policy of respecting third-party patents during new product development.

HFZ has also been recognized for their excellence and success in the field, having been named one of the top patenting entities in the world. Their consistent work product and ability to quickly adapt and excel make them a highly recommended choice for patent-related services