Ayhan Ergun Mertogul, Patent Attorney in Chicago, Illinois

Ayhan concentrates on patent. Each area below outlines the kind of case Ayhan handles, typical outcomes to expect, and how the intake process starts.

• Patent

  View other Patent attorneys

Ayhan's primary office is at 70 W Madison St Ste 5200, Chicago, IL, 60602-4378. In-person meetings are by appointment; a phone intake usually comes first.

Working with a new patent attorney should feel structured. Here's how the first two conversations with Ayhan usually go, from the moment you request a consult to the day representation begins.

Ayhan discusses fees during intake so the arrangement fits the matter. Contingency, hourly, and flat-fee options are all common in patent practice — ask which fits.

• How much does it cost to hire Ayhan for a patent case?

  Cost depends on the type of matter, the fee model (contingency, flat, hourly), and how contested the case becomes. Ayhan walks through the likely range during the consult so there are no surprises.

• Does Ayhan offer a free consultation?

  Ayhan charges for the initial consult; that fee is credited toward representation if you retain Ayhan's office. Some patent attorneys offer free consults — check Ayhan's current terms during booking.

• How long do patent cases in Illinois typically take?

  Simple patent matters can wrap in a few weeks; disputed cases can run 6–18 months from intake to resolution, longer if the matter goes to trial. Ayhan gives a realistic estimate for your facts at the consult — vague answers here are a red flag.

• Can Ayhan take my case if I'm outside Chicago?

  Ayhan is licensed in Illinois. Matters governed by Illinois law are the natural fit. Out-of-state matters are handled case-by-case, sometimes with local co-counsel. Ask during intake — Ayhan will tell you if the case is a fit or refer you to someone closer to your court.

• What should I bring to my first meeting with Ayhan?

  Bring every document that touches the dispute: contracts, correspondence, police or medical reports, filed pleadings, invoices, photographs, insurance letters. Also bring a written timeline of what happened, in your own words. Ayhan will filter what matters — over-preparing at intake is always cheaper than needing a second meeting.

• Is Ayhan accepting new patent clients right now?

  Ayhan's intake status shifts week to week. Submit the form; the office will confirm availability or refer the matter out.