Timber, lumber, and agriculture have deep roots in the Pacific Northwest. From our main office in Portland, Oregon, and from the founding of the firm in 1952, we have formed strong ties to the forest-products industry and its suppliers. The Willamette Valley has always been an agricultural center, so we have built strong relationships to agribusiness too.
Kolisch Hartwell has an active and longstanding practice in agriculture and forest products. The technologies underlying innovations in these areas include diverse disciplines such as mechanical, chemical, and electrical engineering; the materials sciences; and biotechnology. Our intellectual property attorneys and patent agents practicing in agriculture, forest products, and related industries, typically have at least an undergraduate degree in the underlying engineering or scientific discipline.
Reflecting our strong combination of legal and technical skills, our clients have entrusted us to pursue patent rights on their behalf in diverse areas:
- Agricultural harvesting systems
- Composite wood products such as oriented strand board (OSB)
- Computer-automated and manual saw systems
- Dry kilns
- Engineered wood products, such as I-beams, trusses, and laminated veneer lumber
- Forest fire suppression aircraft
- Industrial chipper systems
- Knives for cutting wood
- Lumber manufacturing systems
- Saws, including chain saws
- Software for controlling wood production
- Wood adhesive systems
- Wood conveyor systems.
Our portfolio shows some representative patents we have prosecuted in these areas.
We assist large and small clients in the natural-resources industries with patentability searches, freedom-to-operate opinions, infringement and validity analyses, licensing, and litigation. Because Kolisch Hartwell has attorneys with expertise in nearly every technology area, we can assist our clients with innovations that span technologies or that lie in other technologies.

