An anchoring extrusion restrictor used for an unretrievable packing device comes with several rings, and a top that has at minimum one insert. This insert is made to be able to grasp and bite the well casing in which a packer is placed. Anchoring extrusion limits the expansion of packing elements and also provides anchoring support to packer’s anchoring slips.

Packers for isolating fluid pressures in well bores with cased valves are well known in the art. A lot of these packers are single-use packs that cannot be retrieved from the well bore. One example of a single-use packer is the frac plug used to isolatefracturing fluid pressure in hydrocarbon well completion or recompletion procedures. A frac plug can be removed from the bore through drilling it out using the aid of a drill connected to a tubing string. This drill-out procedure is made easier by providing a frac plug made entirely made of composite material. When such a frac plug is described in Applicant’s co-pending U.S. patent application Ser. No. No. 15/935,163 which is a Composite Fract Plug, that was filed Mar. 26, 2018 and the complete specification is included herein by reference. Frac plugs should contain high fluid pressures inside cased well bores, typically at high temperatures. The fluid pressure can cause the main sealing element of the frac plugs, to expand and loose their fluid sealing contact with the well bore casing. Anti-extrusion inhibitors can help limit sealing element extrusion and maintain the sealing element within contact with the casing of the well bore. Anti-extrusion rings comprise one kind of anti-extrusion inhibitor that has been proved to be effective in inhibiting sealing element extrusion. However anti-extrusion rings can be dislocated or deformed by the extruding of the main sealing element. It is preferable to have an anchoring restrictor for extrusion that is able to engage the casing to resist the extrusion pressure of the main sealing element.

The extreme pressure of fluids can also cause to cause the frac plug to move within the cased well bore. The frac plug is fitted with “slips” that grab the casing to anchor the frac plug within the well bore. The slips travel up a slip ramp to a setcondition, so the greater the fluid pressure on the frac-plug, the more the slips will bite and grip the casing to anchor the frac plug to the well bore. However, the thrust load on the slips can overpower the material strength of the slip bodies or anchorelements. It is also suggested to use an extra anchor for frac plug slips.

Therefore, there is a requirement to have an anchoring extrusion limiter as well as one that is a frac plug with the same.

Click here to view the patent on USPTO website.


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What is a patent?

The government grants patents to protect an invention, patents grant the inventor exclusive rights to create, use, sell and promote the invention? Society is benefited when a brand new technology is brought to the market. These benefits may be realized directly by people who are able to achieve previously impossible feats and indirectly by the opportunities for economic growth that innovation offers (business growth, jobs).

Patent protection is sought out by many pharmaceutical companies and university researchers to protect their research and development. Patents are granted to the creation of a product, process or method for making new materials. In order to be granted protection under a patent an invention has to be novel, useful and not apparent to others within the same subject.

Patents reward inventors who have commercially successful inventions. They act as a motivator for inventors to come up with new ideas. Small companies and inventors are assured that they will get an income from their investment in technology development through patents. They can earn a living through their work.

Companies with the capacity to:

Protect your innovative products and services.

Enhance the value, popularity, and appeal of your product on the market;

Differentiate yourself and your products from the competition.

Find out about business and technical information.

Avoid using content from third parties or risk losing valuable information or creative outputs as well as other outputs.

Patents can transform an inventor’s knowledge into a marketable asset that opens up new possibilities to create jobs and boost business growth by licensing or joint ventures.

Investors who are involved in the commercialization and development of technology will appreciate small companies with patent protection appealing.

Patenting may lead to innovative ideas and inventions. These information may be eligible for protection under patents.

Patents can be used to prevent untrustworthy third parties from profiting through the work of inventions.

Patent-protected technology revenues that are commercially profitable may be used to fund technological research and development (R&D) which can increase the chance of better technology in future.

Intellectual property ownership can be used to convince investors and lenders that there are genuine opportunities to commercialize your product. Sometimes, one patent could open the door to multiple financing options. Patents can be used along with other IP assets as collateral or security to secure financing. Investors can also see your patent assets to increase the value of your company. Forbes and other sources have stated that every patent can boost the value of your company by as much as $500,000 to $1 million.

Startups require a carefully-crafted business plan that builds on the IP to prove that your product/service is unique innovative, superior, or superior. Investors will also be amazed if your IP rights are secured or are in the process of being secure, and if they agree with your business strategy.

It is crucial to keep an invention hidden until you file to protect it with patents. Making an invention public before filing it could often erode its originality and render it unpatentable. Therefore, prior filing disclosures (e.g. for testing-marketing investors, investors, or for other business partners) should only be filed following the signing of a confidentiality agreement.

There are a variety of patents. Understanding the different types of patents is vital to protect your invention. Utility patents are for the development of new methods and machines. Design patents cover ornamental designs. Patents for utility are the best option and shield the owner from copycats and other competitors. In most cases they are granted for improvements or modifications to existing inventions. Patents issued under utility can be used to improve or modify existing inventions. For instance, a procedure patent will be able to cover actions or methods of performing one specific thing, while chemical compositions will comprise an assortment of ingredients.

What is the length average of patents? While utility patents last for 20 years from the date of their earliest filing, they may be extended through delays at the Patent Office.

Are you looking to patent your ideas? Patents are granted only for first-to-file applicants, you need to start filing quickly. Call PatentPC to speak with a patent attorney PatentPC to protect your idea now!

When drafting a patent application when you are writing a patent application, it is advised to conduct an internet search for patents, since the search will give you some insights into the thoughts of others ideas. This allows you to restrict the scope of your idea. Furthermore, you’ll be aware of the current state of technological advancements in your field of innovation. You’ll have a better idea of what your invention ought to be, and you’ll be more prepared to submit the patent application.

How to Search for Patents

The first step to get your patent is to conduct an internet search for patents. You can do a google patent search or do a USPTO search. Patent-pending is the name used to describe the product that has been covered by the patent application. You can search the public pair to locate the patent application. When the patent office is satisfied with your application, you’ll be able do an examination of the patent number to find the patent issued. Your product is now patent-able. Alongside the USPTO search engine, you may also use other search engines, such as espacenet, as detailed below. Patent lawyers or a patent attorney can help you through the procedure. In the US patents are granted by the US patent and trademark office or the United States patent and trademark office, which is also responsible for examining trademark applications.

Are you interested in finding other similar patents? These are the steps:

1. Think of terms to describe your invention, based on its purpose, composition, and use.

Write down a succinct detailed description of your invention. Do not use generic terms such as “device,” “process,” and “system.” Instead, look for synonyms to the terms you chose initially. Next, take note of crucial technical terms as well as keywords.

Utilize the following questions to help you find the keywords or concepts.

  • What’s the purpose of this invention? Is it a utilitarian device or an ornamental design?
  • Is invention a way to create something or perform a function? Is it a product or procedure?
  • What is the nature and purpose of the invention? What is the physical structure of the invention?
  • What’s the point of this invention?
  • What are the technical terms and keywords that describe the essence of an invention? A technical dictionary will help you find the appropriate terms.

2. Utilize these terms to locate pertinent Cooperative Patent Classifications for your invention at the Classification Text Search Tool. If you’re unable to locate the appropriate classification to describe your invention, scan through the Schemas of classes (class schedules). If you don’t see any results using the Classification Text Search, you might consider substituting your words that describe your invention with synonyms.

3. Check the CPC Classification Definition for confirmation of the CPC classification you’ve found. The hyperlink to a CPC classification definition will be given in the event that the title of the classification is a blue square with a “D” to its left. CPC classification definitions can help identify the specific classification’s scope, so you are certain to pick the most appropriate. In addition, these definitions can include search tips and other suggestions that may be useful for further study.

4. The Patents Full-Text Database and the Image Database allow you to retrieve patent documents that include the CPC classification. You can review and narrow down the most relevant patent documents by looking first at abstract and drawings representative of.

5. Use this selection of the most relevant patent publications to look at each in detail for similarity to your own invention. Be sure to read the specification and claims. Refer to the applicant and patent examiner to obtain additional patents.

6. Search for patent applications that have been published using the CPC classification you chose in Step 3 from the Applications Full-Text and Image Database. You can apply the same search strategy as Step 4, narrowing your search results to the most pertinent patent applications by examining the abstract and representative drawings on each page. After that, you must review the patent applications that have been published carefully, paying special attention to the claims as well as other drawings.

7. Find other US patents by keyword searching in PatFT or AppFT databases, classification search of non-U.S. patents according to below, and searching for non-patent literature disclosures of inventions using internet search engines. For instance:

  • Add keywords to your search. Keyword searches may turn up documents that are not well-categorized or have missed classifications during Step 2. For example, US patent examiners often supplement their classification searches with keyword searches. Think about the use of technical engineering terminology rather than everyday words.
  • Search for foreign patents using the CPC classification. Then, re-run the search using international patent office search engines such as Espacenet, the European Patent Office’s worldwide patent publication database of over 130 million patent publications. Other national databases include:
  • Search non-patent literature. Inventions can be made public in many non-patent publications. It is recommended that you search journals, books, websites, technical catalogs, conference proceedings, and other print and electronic publications.

To review your search, you can hire a registered patent attorney to assist. A preliminary search will help one better prepare to talk about their invention and other related inventions with a professional patent attorney. In addition, the attorney will not spend too much time or money on patenting basics.