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Long Island Patent Attorney, P.C.

Law Firm
5 (87 reviews)

About

IP firm headquartered in Long Island, New York, serving clients nationwide. Handles patent prosecution, trademarks, copyrights, and IP strategy for entrepreneurs, startups, and growing businesses.

Specialties

AI and SoftwareMechanicalChemicalConsumer Products

Services

  • Patent Prosecution
  • Provisional Patent
  • Utility Patent
  • Design Patent
  • Patent Search
  • Office Actions
  • Patent Litigation
  • Trademark
  • Trade Secret
  • IP Portfolio

Reviews

Google Reviews
Xin Yang Feb 2026

I strongly recommand Dan for his attorney service for patent application. He is very responsive and detail-oriented.

J Spuds Feb 2026

Highly recommend Dan Weglarz . I am completely impressed with his professionalism and attention to detail. He listen to my needs and addressed them promptly and gave me great insight. Anyone needing ...

Olena Zavragina Feb 2026

Daniel Weglarz is committed, responsible, and thorough. What makes him a great lawyer is his ability to combine strong legal expertise with creativity and innovative thinking. He is always responsive,...

Guillermo caballero Feb 2026

I had an excellent experience working with Daniel. He is extremely detail-oriented, thorough, and truly cares about getting things right. His professionalism and clear communication gave me a lot of c...

Joshua Arroyo Dec 2025

Dan is super informative, thoughtful, and flexible. He took the time to sit with me and answer every single question I had, regarding copyright, in great detail and length. He went above and beyond in...

Allie Malvone Dec 2025

I worked with Dan Weglarz on my U.S. trademark from start to finish, and the entire process honestly could not have been easier. Dan is patient, knowledgeable, incredibly responsive, and genuinely kin...

Brian Kanischak Nov 2025

I have know Dan the for over 20 years.i have rarely known anyone with such integrity,.truly. If I had to pick his one biggest trait, that would be the one.Many times I have confided in him and his dis...

E L Nov 2025

I had an excellent experience working with Dan, my attorney. The education and guidance I received was incredibly valuable, and the fees were minor compared to the insight and support I gained. Truly ...

dan Nov 2025

Called to ask some questions and potentially retain for upcoming product launches. Answered all my questions and even advised me not to retain a lawyer yet until I do a little more research. Very hone...

Suzanne Hoerning Nov 2025

Dan Weglarz is very knowledgeable and professional. Dan has excellent communication skills andi is prompt for appointments. He was able to help us evaluate our options and decide the best solution. W...

Andrew Kim Aug 2025

Had an amazing experience here absolutely professional and will use again

Hamptons Organizers Aug 2025

Dan is a whiz when it comes to all things patent and trademark. He was responsive, knowledgeable, thorough, and committed to providing guidance for our small business legal needs. His patience, determ...

Nicole Lora Aug 2025

Thank you Dan for taking your time with me, for the valuable information you provided me.

Raphael Jul 2025

Working with Dan was one of the best decisions I’ve ever made. From the very beginning to the end, he was attentive, clear, calm and most of all reassuring. These are the qualities that made the entir...

Gabriella Jamiolkowski Jul 2025

Dan made what could’ve been a really overwhelming process feel simple and straightforward. He's down-to-earth, quick to respond, and explained everything in a way that actually made sense. You can tel...

Edward Mahoney Jul 2025

Dan was very thorough in understanding the details of my invention and provided clear, advice on how to best protect my intellectual property. Communication was prompt and transparent, ensuring I was ...

Min Chan Jul 2025

We had the pleasure of working with Dan as a startup in the legal tech space, and he was absolutely invaluable. He provided clear, practical legal advice tailored to our needs and went above and beyon...

Carlos Poitan Jul 2025

Whenever I need the expertise of a patent or trademark attorney, Dan is who I use because he is very easy to talk to, informative and really tries to guide you in the right direction when moving forwa...

Angelo Jara Jul 2025

Great service! Very professional, clear, and helpful throughout the entire patent process. Highly recommend!

Charles Giovanniello Jun 2025

Professional and very knowledgeable! Learned a lot in a short session.

Estimated Pricing

Provisional Patent $4,035 National Average
Non-Provisional Patent $9,086 National Average
Flat Fee & Hourly
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