US 6,035,901 · Granted 2000-03-14
The Woven Mesh Patent That Reinvented Office Chair Comfort
Herman Miller patented a clever woven fabric made of thick yarn strands running one direction and thin monofilament threads weaving perpendicular through them, creating a stretchy, breathable mesh that holds its shape. It's the kind of engineering that turns an office chair seat from a sagging nightmare into something that bounces back all day long.
The plain-English version
What it protects
The claim covers a specific weaving pattern: groups of parallel multifilament strands (the main support fibers) interlocked with monofilaments (thin threads) that weave above and below in alternating rows. Pairs of monofilaments cross over between strand groups to lock everything in place. The patent also covers how this mesh is attached to a frame with strands running lengthwise and monofilaments running side-to-side. Anyone making a seat mesh with this exact crossing and locking pattern without permission would be infringing.
Why it matters
This patent protected Herman Miller's design for a durable, breathable seating surface at a time when office furniture was becoming a focus of ergonomic innovation. The woven construction offers better airflow and support recovery than solid foam or basic fabric, which became increasingly important as companies invested in better office chairs. The patent gave Herman Miller exclusive rights to this specific weaving geometry for seventeen years, helping establish their competitive edge in the high-end furniture market during the late 1990s and 2000s.
Real-world use
When you sit on a modern office chair and feel the mesh seat flex and breathe rather than compress into a flat pancake, you're likely experiencing a mesh design derived from this woven-strand-and-monofilament concept or similar geometry.
Original USPTO abstract
A membrane for a seating structure including a plurality of groups of at least two adjacent and parallel strands of multifilament yarn and a plurality of monofilaments arranged in generally perpendicular interlocking relationship with the strands. The monofilaments weave alternatively above and below the adjacent strands in each group. A plurality of pairs of the monofilaments hold the groups of strands in place by having the monofilaments in each pair cross over between each group of strands. In one aspect, the membrane is attached to a frame member such that the plurality of groups of strands are oriented in the longitudinal direction of the frame member and the monofilaments are oriented in the lateral warp direction of the frame member. In another aspect, the seating structure includes the frame member and attached membrane.
Patent details
- Publication number
- US 6,035,901
- Filing date
- 1995-06-07
- Grant date
- 2000-03-14
- Assignee
- Herman Miller, Inc.
- Inventor(s)
- STUMPF; WILLIAM E., SCHOENFELDER; RODNEY C., CHADWICK; DONALD, KELLER; CAROLYN, COFFIELD; TIMOTHY P., SAYERS; RANDY J., BRUNER; JEFFREY W., CAMMENGA; ERIC
- CPC class
- A47C7/02
Want to file your own patent?
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