For Domestic Clients

Portland Oregon Patent Law Firm

With over a century of collective experience, our professionals provide IP services to clients ranging from pre-revenue startups to global corporations. We excel at securing domestic patent and trademark portfolios, and then internationally extending those portfolios via foreign filings around the world. We also provide strategic counseling and written opinions to help clients reduce legal risk when confronted with third party intellectual property rights. 

We also work with clients to proactively reduce IP-related business risk, for example by designing around blocking patents and trademarks, invalidating patents and through reexamination, post-grant review, and inter partes review, and by opposing and canceling third party trademarks at the U.S. Trademark Trial and Appeal Board. We further assist clients in resolving intellectual property disputes and obtaining value from IP portfolios through strategic licensing and enforcement of portfolio assets.

  • Software Practice

    The firm's patent attorneys represent some of the most advanced software companies in the world, in cutting edge areas such as software for data center networking, machine learning, office productivity, voice recognition, natural language processing, wearable devices, holographic projection systems, near eye displays, gaming consoles, and operating systems. Software is one of the firm's most active practice areas, and all the firm's patent attorneys are active in the firm's software practice.

  • Mechanical Practice

    The firm builds mechanical patent portfolios in such diverse areas as automotive and motorcycle technologies, including engines, transmissions, and steering and suspension systems; toys; solar panels; fluid flow control devices; electronic materials and processing tools; computer peripherals; heavy equipment; and personal watercraft. Mark Alleman and Charlie Moore are mechanical engineers at the firm and active in the firm's mechanical practice.

  • Chemical Practice

    The firm represents some of the largest chemical companies in the world to protect their intellectual property in fields such as thin films, quantum dots, electrical pastes, polymer chemistry, OLED display materials, inks, and dyes. Matt Hall is a Ph.D. chemist who is active in the firm's chemical practice.

  • Electrical Practice

    The firm has experience patenting various electrical technologies including wearable devices, holographic projection systems, near eye displays, gaming consoles, wireless technologies, smartphones, communications ports, batteries, OLED displays, PLL/DLL chip support, system-on-chip microprocessors, electrical probes, analog and mixed-signal circuits, radar, sonar, GPS enabled navigation devices, data and telecom switches. Chris Tuttle is a trained electrical engineer active in the firm's electrical practice. 

  • Biotech Practice

    Our M.D. and Ph.D. educated scientific staff help biotech companies protect their technologies in such areas as medical devices, medical visualization software, bioinformatics, biosimilars, electronic health record software, drug delivery devices, probes, assays, medical imaging, and pharmaceuticals. Shu Muramoto is an M.D. and licensed patent agent at the firm and active in the firm's biotech practice.

  • Trademark Practice

    Alleman Hall Creasman & Tuttle LLP assists clients in building robust trademark portfolios, and protecting their trademark rights from encroachment by third parties. We advise clients considering adopting new brands to inform them of the potential risks posed by third party trademarks and the likelihood of obtaining protectable trademark registrations for these new brands in the U.S. and abroad. We help fortify our clients' rights in existing brands by expanding their trademark registrations to cover additional countries and additional goods and services, where appropriate. We also defend existing trademark portfolios by monitoring third party trademark activity to identify applications, registrations, and actual use in commerce of third party marks that potentially encroach upon our client's rights, and filing trademark oppositions and cancellation proceedings in the U.S. and abroad where necessary. The firm also assists clients with inbound and outbound trademark license agreements, and helps them negotiate trademark disputes with third parties. All of the firms attorneys are active in the firm's trademark practice.

  • Global Portfolio Development

    Alleman Hall Creasman & Tuttle LLP has an active global portfolio development practice, assisting U.S. clients to extend the protections of their U.S. patents and trademarks overseas. The firm has particularly close ties to Europe and Asia, and works in tandem with law firms in Asia and Europe to handle international patent and trademark prosecution, cross-border licensing, foreign patent non-infringement and invalidity studies, foreign patent invalidity proceedings, and trademark oppositions and cancellations. The firm has Japanese speaking staff, including Mark Alleman, who lived and worked in Japan for several years as a registered Foreign Lawyer (Gaikokuho Jimu Bengoshi), and travels to Japan frequently, and Shu Muramoto, who speaks native level Japanese, and advanced German and Chinese.


For International Clients


We represent international clients as their U.S. agent in foreign origin patent and trademark applications filed with the USPTO. We also represent international clients in resolving intellectual property disputes in the United States, evaluating infringement risks related to U.S. patent and trademarks, invalidating U.S. patents through reexamination and post-grant proceedings at the USPTO, and submitting third party preissuance submissions of related prior art in third party patent applications, for example. The firm has many staff members fluent in foreign languages to assist our international clientele. Mark Alleman heads the firm's international practice group.

  • Multilingual fluency (Japanese, Spanish, German)

    The firm has a particularly active practice representing a wide variety of Japanese clients, including automotive manufacturers, motorcycle manufacturers, heavy equipment manufacturers, chemical companies, electronic materials manufacturers, bicycle component manufacturers, electronics companies, scientific instrument manufacturers, and computer gaming companies. The firm has several Japanese speaking staff, including Mark Alleman, who lived and worked in Japan for several years as a registered Foreign Lawyer (Gaikokuho Jimu Bengoshi), and travels to Japan frequently, and Shu Muramoto, who speaks native level Japanese, and advanced German and Spanish. The firm also has native Japanese speakers among its paralegal staff, to better assist its Japanese clientele.

  • Client Trainee Program

    The firm accepts a select number of trainees from our international clients, to work alongside our staff while studying the U.S. intellectual property system. Although various arrangements may be made, typically trainees visit in groups of 1-3 at a time, and train for an intensive 2-3 week period. For information on becoming a trainee at our firm, please contact Mark Alleman.