Patent Engagement Letter

Re: Engagement of Oliver & Grimsley, LLC Patent Law Services Related to Obtaining & Maintaining a Patent Thank you
for your interest in our availability to provide you with patent law legal services. As we discussed, we would be pleased
to assist you. However, we are not engaged to handle your matter until you perform two tasks, (1) click on the link in this
letter, and (2) provide us with the requested, initial, retainer payment in the amount of $_____

To: (i) generally further acquaint you with the nature of
our patent law services related to obtaining and maintaining a patent and their potential costs, and (ii) confirm our understanding
with respect to our representation of you, listed and discussed below are: (a) some of the services that we most frequently
provide to our clients, including the various steps involved in providing these services and their typical legal fees and
expenses, and (b) the general terms of our representation of you.  We propose to proceed in a step by step manner and you
may elect to stop at any step in this process so as to not incur further legal fees:

1. Obtain and Maintain a Utility Patent for Your Invention: The typical steps in this process include:

a. Novelty Search: Perform a novelty search to assess whether patent coverage seems available for your
“invention;” this would include, using your “enabling disclosure,” writing a claim to your invention and
assessing whether a Patent Examiner is likely to allow the claim and therefore grant you a patent in view
of the patents that are on file at the U.S. Patent & Trademark Office (USPTO) and giving you an oral
report of our findings. Legal Fee – typically capped at $1,500 and dependent on the necessary extent of the
search. If your novelty search were to come back negative, our representation of you in this matter would
probably conclude at this step.

b. Preparation and Filing of a U.S. Regular Patent Application (RPA): Legal Fee – approximately $5,000
– $15,000, with the exact amount depending upon the complexity of your invention (e.g., for a simple mechanical
product – $5,000; for a business method patent to protect, e.g., an internet service business – $12,000)
and the effort required to fully claim it. Expenses – USPTO Filing Fees – usually $800
[1], assuming you are entitled to pay “small entity” fees and do to wish to expedite the USPTO’s examination
of your patent application, plus expected expenses, e.g., line drawings @ $100/sheet.

c. Written Responses to the USPTO. Respond to USPTO Office Action/s which gives the USPTO’s feedback on the application that we
have filed for you (A necessary step in >95% of utility applications): Legal Fee – typically $2,000 –
$3,000/Response.  Recognizing that a Response to more than one Office Action may be required, it is hoped
that these legal fees for this step can be held to $7,500 or less.

d. Notice of Allowance. Filings in response to receiving a Notice of Allowance & the subsequent issuance
to you of a Patent: Legal Fee – approximately $800, Expenses – USPTO Issuance Fee – $480 (assuming the patentee
is a “small-entity”).

e. Patent Maintenance Fees To Extend The Life/Term Of Your Patent. To extend the term of the life of your
patent to its maximum of 20 years from when you file a patent application for your invention, you will need
to pay “small entity” maintenance fees of $800, $1,800 and $3,700 on the respective 3rd, 7th and 11th year
anniversaries of the date of issuance of your patent (assuming the patentee is a “small-entity”).

f. Foreign Patent Applications. Depending upon your interest in foreign patent protection, within twelve
months of filing a U.S. patent application or your invention’s public disclosure, you will need to apply
for your foreign patent rights – typically by filing what is known as a Patent Cooperation Treaty (PCT) Application.
Legal Fee – it is hoped the initial legal fees can be held to $2,000 or less, Expenses – typical initial
PCT filing expenses are on the order of $3,000. Significant, additional service and legal fees will be incurred
as we prosecute any foreign patent application resulting from this initial PCT filing.

2. General Patent Counseling Services: We can provide additional, general patent counseling services on
all matters relating to obtaining a patent for your invention, including questions regarding assignment,
marketing, licensing, etc. of your invention and other related business matters, freedom-to-use your invention
without the likelihood of being accused of infringing another’s patent. Legal Fee: charged at hourly rates,
see below:

Attorneys: Hourly Rates
Larry J. Guffey   $425.00
Pamela K. Riewerts   $325.00
Paralegal   $175.00

We reserve the right to increase our hourly rates from time to time. It may be necessary for additional attorneys of this
firm to perform work on other matters that you may refer to us.

3. Retainer. Before we can begin to provide our patent law services, you will need to provide us with an initial
retainer against which we will charge the cost of our billable hours, expenses, etc. As this retainer is depleted,
you will be required to replenish it in an amount that is proportional to cost of the next upcoming step that we
anticipate we will be undertaking for you. The amount of these retainer replenishments will normally be in the range
of $2,000 – $5,000 and will be deposited in an escrow account that will be created to hold your retainer payments.
Upon the completion of our representation of you, and after all fees and expenses have been paid, any remaining funds
in your escrow account will be promptly returned to you.

4. Our Obligations to You. If you are executing this letter as a representative of an entity, you represent that
you have authority to bind your entity, and you acknowledge and we agree that our engagement is with the entity only,
and not with you individually (if this sentence applies, “you” or similar pronouns in this letter refer to the entity).
We will only perform work you request us to perform; we will keep accurate records of our work, we will communicate
with you regarding our services; we will comply with our ethical and legal obligations to you; we will bill you a
fair and reasonable fee, and we will use our best effort to reach a successful conclusion to any matter in which
we are engaged. We encourage communication and if you ever feel we are not meeting these obligations you agree to
let us know.

5. Your Obligations to Us. You agree to keep us informed and disclose to us all material facts related to matters
in which we are engaged, and to pay our fees.

6. Expenses. If we incur external costs on your behalf, such as filing fees, delivery charges, wire transfer fees,
and similar expenses, you agree to pay those expenses.

7. Invoices, Payments. We will render invoices for services and expenses periodically (typically monthly) and you
generally agree to pay our fees and expenses within 30 days of our invoice for them. However, for the filing of a
patent application, we will typically provide you, just prior to your application’s planned filing date, with a “pre-application
filing” invoice for such services and will expect that you will pay this invoice before we make the actual filing.
We are entitled to our fees regardless of the outcome of the matter.

8. Discounts. If you keep a credit card on file and allow us to charge that to pay our fees within 15 days of the
date of our invoice, we will discount the fee portion of the bill by 5%.  Please note that this must be a VALID credit
card so that the transaction is completed at the time of processing.  This discount does not apply to reduced rates,
capped fees, or any flat rate arrangements.

9.Confidentiality. We are under the highest fiduciary duty of care to maintain your client confidences. We will
comply with this duty, unless you expressly or impliedly waive it.

10. Electronic communications. We communicate (and you agree to communicate) using electronic communications.

11. Records Retention, File Security, Paperless Files. We operate on a paperless basis, meaning that we store your
records electronically. We use off site email storage; we use online banking, and we use online and cloud-based document
storage. While we use reasonable effort to maintain such records securely, and our vendors have covenanted to us
that they will also make such reasonable efforts, we advise you that no computer system is free from risk of data
breach.

12. Termination. You may terminate our representation at any time on notice to us. We may terminate our representation
of you, subject to the Maryland Rules of Professional Conduct, and any applicable rules of the USPTO, upon written
notice to you. On a termination, you agree to pay all accrued fees through the date we terminate work. As long as
our fees are paid, we will return or make available your electronic files at the end of our representation.

13. Appendix We have developed an appendix of disclosures relating to various costs in patent prosecution, which is incorporated herein. You can read those disclosures here: Appendix

If the foregoing correctly sets forth your understanding of the terms of our engagement, please click on the link in the
email above to note your acceptance of the terms. If we have indicated a retainer is due, please also make arrangements for
that payment. We look forward to serving you in this matter.

[1] See
Appendix, “Expedited Examination of a Regular Patent”