Attorney profile
Law Office of Jason H. Rosenblum, PLLC
The short version
Brooklyn-based intellectual property practice led by attorney Jason H. Rosenblum, handling trademark registration, patents, copyrights, and IP portfolio management for businesses and founders.
Strengths
- Trademark, patent, copyright, and IP licensing work handled under one practice, including USPTO office actions and ongoing portfolio management.
- Reviewers consistently describe clear, timely communication and patient explanations of complex IP concepts.
- Fee structures are repeatedly described as transparent and fair, with expectations set early about timelines and risks.
- Free discovery calls and an async chat option make initial consultations accessible, and reviewers frequently note responsive follow-up.
- Long-term client relationships are common, with reviewers citing repeat work and multi-year portfolio oversight.
Considerations
- Some clients came to Rosenblum after problems with earlier filings or third-party filing services, requiring corrective work at the start.
- Written accounts praise upfront explanations of timelines and risks and prompt status updates rather than recurring complaints about unclear guidance.
About Law Office of Jason H. Rosenblum, PLLC
The Law Office of Jason H. Rosenblum, PLLC is an intellectual property practice at 155 Water St in Brooklyn, New York, serving clients locally and, according to the firm, worldwide. The office describes itself as a Brooklyn intellectual property and trademark lawyer, with published areas of practice spanning copyright law, trademark law, patents, IP law, and business stages. Trademark registration and related trademark services are central to the work, and the firm markets the phrase “Intellectually Protecting Your Property” alongside free discovery calls and an async chat option for prospective clients.
Much of the client base appears to be small business owners, founders, inventors, and authors who need brand or invention protection without managing the legal mechanics themselves. Reviewers describe the firm helping with trademark searches and applications, service marks, provisional and full patent filings, copyright questions for a self-published book, IP licensing, and ongoing portfolio management. Several reviewers say the office took over office actions received from the USPTO and now handles an entire trademark portfolio, while others describe long-running relationships spanning years or a decade.
The qualities clients return to most are communication and clarity. Reviews repeatedly describe patient explanations of complex IP concepts, prompt responses, expectations set early around timelines and risks, and documentation handled with precision. Transparent, fair fee structures come up more than once, as does a willingness to answer questions without pressure. One reviewer credits the firm with helping recover money lost to a misleading trademark filing website, and others note candid guidance even when the advice did not lead to more billable work.
The atmosphere reads as approachable rather than formal: reviewers describe Jason as personable, honest, a good listener, and easy to reach, with a team that keeps clients informed at each stage. Consultation availability is a recurring theme, with multiple reviewers referencing free or extended initial conversations.
Clients also praise clear explanations of filing timelines and risks. The feedback is almost uniformly five-star, so there is little visible detail about how the firm handles disputes or unfavorable outcomes. The practice also presents itself as IP-focused rather than general-purpose, and several reviewers arrived after problems with earlier filings or third-party services, meaning some matters begin with issues inherited from a prior provider.
Recurring feedback
What clients consistently mention
- Communication and responsiveness: reviewers frequently note prompt replies, clear status updates, and explanations delivered in plain language.
- Process clarity: recurring feedback describes complex trademark, patent, and copyright procedures being made manageable, with timelines and risks explained up front.
- Pricing transparency: multiple reviewers mention fee structures that were clear, fair, and communicated in advance.
- Long-term trust: reviewers often describe repeat engagements, multi-year portfolio management, and referrals to other business owners.
- Candor: feedback highlights honest, direct advice, including consultations where the guidance was provided without pressure to engage further.
All reviews
5 out of five stars based on 121 reviews.
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