Filament LegalPatents & Trademarks

Our managing partner spent seventeen years examining patents for the USPTO.

Filament Legal is an intellectual property firm built on that experience. We draft, file, and prosecute patents and trademarks, for corporate portfolios and for people filing their first application. We know what a strong application looks like because we spent years deciding which ones deserved to issue.

NineteenYears in intellectual property
SeventeenYears examining at the USPTO
TwoMechanical engineering degrees
FiftyStates, for practice before the USPTO
10 12 14 16 18

Fig. 1. Incandescent lamp. 14, carbon filament.

  • Patentability searches
  • Application drafting
  • Office action response
  • Patent prosecution
  • Examiner interviews
  • Trademark clearance
  • Federal registration
  • Portfolio strategy
  • Patent valuation
  • Renewable energy systems
  • Optics and photonics
  • Mechanical devices

An examiner reads your application looking for reasons to reject it.

Maurice Williams did that job for seventeen years. Your application lands in the same queue he worked, judged against the same rules he applied thousands of times.

We draft claims expecting the rejection they will draw rather than the one we hope they avoid. We write specifications carrying the support an examiner looks for when you need to amend two years later. When an office action arrives, we read it as the opening of a negotiation.

On the record

  • Former patent examiner, United States Patent and Trademark Office
  • Mechanical Representative, Patent Office Professional Association, over ten years
  • Registered to practice before the USPTO
  • Admitted in Maryland
  • B.S. Mechanical Engineering, Purdue University
  • J.D., Indiana University Maurer School of Law
Maurice Williams, Managing Partner

Most businesses need patent protection and trademark protection at different moments.

Your invention and your name are separate assets, registered separately and on different clocks. We handle both.

Patent services

01

Patentability and prior-art searches

We search the field and report what already exists, with a written read on novelty. Sometimes that read says the space is too crowded to be worth a filing fee.

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02

Application drafting

A patent is only as broad as its claims. We write specifications that support the claim set you need now and the amendments you will want later, in language an examiner can allow.

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03

Prosecution and office actions

Most applications draw at least one rejection. We answer on the merits and request an interview when a call will move faster than paper.

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04

Counseling and valuation

Whether to file, what to file, what to hold back as a trade secret, and what a portfolio is worth in a raise or a sale. We work that out with you before any paperwork starts.

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Trademark services

05

Clearance searches

A conflict found after the packaging is printed costs a rebrand. We screen the federal register, state filings, and what is trading in the market.

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06

Federal registration

Filing the right mark, in the right classes, on the right basis. Getting the goods and services description correct at the start prevents most of the trouble that follows.

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07

Refusals and office actions

Likelihood of confusion, descriptiveness, and specimen problems account for most refusals. Most are answerable with the right evidence, and every one of them carries a deadline.

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08

Monitoring and enforcement

Rights erode through non-use and through tolerating infringement. We watch the register for encroaching filings and keep every declaration and renewal docketed.

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A patent application usually takes two to three years to reach a decision.

The ranges below are what we typically see. Your art unit and the complexity of the technology move them.

Watch Maurice walk through the process (1:44)
01

Disclosure and scoping

You tell us what you built and what you want to protect. We tell you whether a patent, a trademark, a trade secret, or nothing at all is the right instrument. The call costs you nothing.

One call. No charge.

02

Prior-art search and opinion

We search the field and report back plainly: what exists, how close it sits to your invention, and where the open space is. When that space is too narrow to justify the filing fee, we say so.

Typically 2 to 4 weeks

03

Drafting the application

Specification, drawings, and claims. You review a full draft and we revise it with you. The inventor always knows a detail the attorney does not, and that detail is often the claim that survives.

Typically 3 to 6 weeks

04

Filing

A provisional holds your date while you keep developing or raising money. A non-provisional enters the examination queue. We recommend based on how settled the invention is and how fast your market moves.

Filed on your date

05

Prosecution

The examiner responds and we respond back, through amendments, arguments, and interviews, until the claims are allowable or we agree the fight has stopped being worth it. You hear from us on every action.

Often 1 to 3 years at the USPTO

06

Issuance and everything after it

Grant starts the next phase. Maintenance fees come due, continuations can cover what you built since, and licensing or enforcement decisions arrive. We hold the calendar so you do not have to.

Docketed for the life of the asset

We work with corporations, startups, and independent inventors.

All three get the same drafting. The difference is in how many filings we recommend and in what order.

Corporations

Portfolio strategy across product lines, coordinated filing programs, freedom-to-operate work, and attorneys who can talk to your engineers in their own vocabulary because they hold the same degrees.

Startups and scale-ups

Filings sequenced around your runway and your raise. We help you spend the first dollars where they buy the most protection, and we tell you which filings can wait.

Independent inventors

Straight answers, no jargon, and an honest read on commercial reality before you spend your own money.

Both of our attorneys earned engineering degrees before they earned law degrees.

Neither of them needs an invention translated before they can draft claims for it.

Maurice Williams

Maurice Williams

Managing Partner

Maurice built his practice on the other side of the examination desk. He reviewed applications for the USPTO for seventeen years and served more than a decade as Mechanical Representative for the Patent Office Professional Association before moving into private practice. He carries a precise sense of what separates an application that issues from one that stalls.

Experience
19+ years in intellectual property
Admitted
USPTO, Maryland
Law
J.D., Indiana University Maurer School of Law
Engineering
B.S. Mechanical Engineering, Purdue University
Greg Tinch

Greg Tinch

Counsel

Greg is a registered patent attorney whose work centers on mechanical and electrical technologies, including renewable energy systems, optics systems and devices, and mechanical apparatus of most descriptions. He began his career as counsel to two members of Congress and worked closely with the Senate Judiciary Committee, so he reads shifts in intellectual property law with a clear sense of how they get made.

Experience
10+ years of legal practice
Admitted
USPTO, Maryland
Law
J.D., University of Maryland Francis King Carey School of Law
Engineering
B.S. Mechanical Engineering, The Ohio State University

Lewis Latimer patented a better way to manufacture carbon filaments.

Our name comes from the part of the lamp that makes the light.

Latimer worked as a draftsman before he worked as an inventor. He rendered mechanical drawings well enough that the patent world came to him for them. He went on to patent a better process for manufacturing the carbon filament inside the incandescent lamp.

He did all of it as a Black inventor in an industry that left him very little room. We took the name because Latimer did both halves of this job. He understood the machines, and he knew the patent system from the inside.

Portrait of Lewis Howard Latimer
Lewis Howard Latimer (1848–1928). Public domain.
He drew patent figures well enough that the patent world came to him for them.
Bright ideas. Brilliant patents.
An idea has to get past prior art and an examiner before it protects anything, and the drafting decides how much of it gets through.

Most people arrive with the same questions.

A patent gives you the right to stop others from making, using, or selling what you invented. That right keeps competitors out of the lane you built. It also turns the idea into an asset an investor can underwrite or a buyer can license. Whether those jobs justify the cost depends on your market, and that is the first thing we will talk about.

You are allowed to file on your own. A patent is only as broad as the claims you wrote, and claims are unforgiving. A narrow claim set, or a specification that fails to support the amendment you need three years later, usually cannot be repaired after filing.

That is the specific failure our background is built to prevent. We spent years reading applications that were technically complete and legally too weak to be worth much.

A provisional application is a lower-cost placeholder. It secures a filing date and lets you say “patent pending” for twelve months, but it is never examined and never becomes a patent on its own. A non-provisional application enters the examination queue and is what eventually issues.

Provisionals help when the invention is still moving or you are raising money. They work badly when they are used to postpone hard drafting decisions, since a provisional only protects what it actually describes.

It means an application is on file at the USPTO and has not yet issued, so you cannot sue anyone while it is pending. Once it publishes, it can start a reasonable-royalty clock you collect on after the patent issues, provided the infringer had notice and the granted claims hold. It also puts the market on notice, and that notice often changes how competitors and investors behave long before a patent grants.

Using a mark in commerce creates limited rights in the geography where you actually sell. Federal registration extends presumptive rights nationwide, puts your claim on a public register that competitors have to clear around, and unlocks enforcement tools you otherwise lack.

For anyone planning to grow beyond their current footprint, registering early costs far less than renaming later.

No, and be wary of anyone who suggests otherwise. A patent grants a legal right to exclude. It creates leverage in licensing, in fundraising, and in negotiation, and what you do with that leverage remains a business decision. Part of our job is helping you decide whether the leverage justifies what it costs to acquire.

Preparing and filing a non-provisional application usually takes us four to eight weeks from disclosure, depending on complexity and how quickly we get your review. After filing, the USPTO controls the clock. First examination commonly arrives one to two years out, and total pendency to grant is frequently two to three years. Trademarks move faster, often around a year when nothing is contested.

Start with the disclosure call.

It costs nothing, and you will come away knowing whether what you built is protectable. We say so plainly when it is not.