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Last Updated: April 9, 2025

Patent: 5,330,841


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Summary for Patent: 5,330,841
Title: Aqueous coating composition and its use for coating mineral substrates
Abstract:The present invention relates to a coating composition which contains A) 100 parts by weight of a water-soluble polyether component having an average hydroxyl functionality of least 2.5 and an average OH number of 100 to 600 and containing at least one polyether polyol, B) 40 to 240 parts by weight of a water-soluble or water-dispersible polyisocyanate component containing at least one nonionically/hydrophilically modified organic polyisocyanate having (cyclo)aliphatically bound isocyanate groups, C) 10 to 50 parts by weight magnesium oxide and/or hydroxide in finely dispersed form and D) 50 to 150 parts by weight water. The present invention also relates to mineral substrates coated with this coating composition.
Inventor(s): Gruber; Hermann (Leverkusen, DE), Reiff; Helmut (Leverkusen, DE), Kober; Hermann (Bergisch Gladbach, DE)
Assignee: Bayer Aktiengesellschaft (Leverkusen, DE)
Application Number:07/891,535
Patent Claims:see list of patent claims
Patent landscape, scope, and claims summary:

Analyzing the Claims and Patent Landscape of United States Patent 5,330,841

Introduction

United States Patent 5,330,841, though not specifically detailed in the provided sources, can be analyzed through a comprehensive framework that includes understanding the patent claims, the patent landscape, and the relevant legal and procedural contexts. Here, we will delve into the key aspects of patent analysis, using general principles and examples to illustrate the process.

Understanding Patent Claims

Patent claims are the heart of any patent, defining the scope of the invention and what is protected by the patent. For a patent like 5,330,841, it is crucial to analyze each claim to determine its novelty, nonobviousness, and subject matter eligibility.

Novelty Requirement

The claimed invention must be novel, meaning it must not have been patented, described in a printed publication, or in public use, on sale, or otherwise available to the public before the effective filing date of the claimed invention[1].

Nonobviousness Requirement

Even if a claimed invention is novel, it must also be nonobvious. This means that the invention must not be an obvious variation of existing technology or prior art. The nonobviousness requirement is a critical hurdle that ensures only truly innovative inventions are patented[1].

Subject Matter Eligibility

The patent claims must also be directed to eligible subject matter. This involves determining whether the claims are directed to a law of nature, natural phenomenon, or abstract idea, and if so, whether they contain an "inventive concept" that transforms the nature of the claim[1].

Patent Landscape Analysis

A patent landscape analysis is essential for understanding the broader context in which a patent exists. Here are some key aspects to consider:

Geographical Spread

Understanding the geographical spread of IP in a technology area helps in advising where to file patents and where to avoid filing to save time and money. This analysis can reveal global hotspots for innovation in the relevant technology area[3].

Saturation of the Patent Space

Determining the saturation level of a specific technology patent space is crucial. High saturation can indicate intense competition and potential difficulties in securing new patents. It also helps in counseling management on the rewards or perils of entering that space[3].

New Entrants and Time-Slicing

Identifying new entrants into a patent space and analyzing changes over time (time-slicing) can provide insights into trends and shifts in the technology area. This helps in making strategic decisions about where to focus research and development efforts[3].

Patent Validity and Challenges

Patents can face various challenges to their validity, including administrative and judicial reviews.

Inter Partes Review (IPR)

The Leahy-Smith America Invents Act (AIA) introduced the Inter Partes Review (IPR) process, which allows third parties to challenge the validity of patents before the Patent Trial and Appeal Board (PTAB). This process has been criticized for making it too easy to challenge patents, potentially stifling innovation[1].

Obviousness-Type Double Patenting (ODP)

The doctrine of obviousness-type double patenting prevents subsequent patents from being granted on the same invention or obvious modifications thereof. Recent court decisions, such as In re Cellect, highlight the importance of terminal disclaimers to avoid ODP issues, especially when patent term adjustments are involved[2].

Patent Search and Analysis

Conducting thorough patent searches is vital for assessing the validity and potential of a patent.

Patentability Search

A patentability search identifies prior art that may disclose the same or similar inventions. This search helps in determining whether the claims should be revised and whether to proceed with a patent filing[5].

Knock-out Patentability Search

This search compares key features of an invention to relevant prior art, evaluating the strength of the invention and determining if claims need revision to improve patentability[5].

Patent Validity Search

A comprehensive global prior art search is essential for defending against patent infringement assertions or assessing a patent’s validity before enforcement or licensing agreements[5].

Strategic Insights from Patent Landscape Analysis

A comprehensive patent landscape analysis can uncover strategic insights that guide business and R&D decisions.

Identifying Niche Areas

Analyzing the patent landscape can reveal underappreciated niche areas where there may be fewer competitors and greater opportunities for innovation. For example, a company focusing a significant portion of its resources on a niche technology may have a competitive advantage[3].

Time-Slicing and Trend Analysis

Time-slicing the patent data can show trends and changes in the technology area over time. This helps in identifying abandoned technologies and emerging trends, allowing for more informed strategic decisions[3].

Case Studies and Examples

Real-world examples illustrate the importance of thorough patent analysis.

In re Cellect

The In re Cellect case highlights the risks associated with receiving patent term adjustments without proper terminal disclaimers. This case emphasizes the need for careful management of patent families to avoid obviousness-type double patenting issues[2].

Comprehensive Patent Landscape Analysis

A detailed patent landscape analysis can help companies like those described in Figure 3A and 3B of the AcclaimIP report. By mapping abandoned and kept technologies, companies can make informed decisions about where to focus their resources and how to navigate highly saturated patent spaces[3].

Key Takeaways

  • Patent Claims Analysis: Ensure that patent claims meet the requirements of novelty, nonobviousness, and subject matter eligibility.
  • Patent Landscape Analysis: Understand the geographical spread, saturation, and trends in the relevant technology area to make strategic decisions.
  • Patent Validity: Conduct thorough searches and analyses to defend against infringement assertions and assess patent validity.
  • Strategic Insights: Use patent landscape analysis to identify niche areas, trends, and opportunities for innovation.
  • Legal and Procedural Compliance: Be aware of legal doctrines such as obviousness-type double patenting and the importance of terminal disclaimers.

FAQs

Q: What is the purpose of a patent landscape analysis? A: A patent landscape analysis helps in understanding the broader context of a technology area, including geographical spread, saturation, and trends, to guide strategic business and R&D decisions.

Q: How does the Inter Partes Review (IPR) process affect patent validity? A: The IPR process allows third parties to challenge the validity of patents before the PTAB, which can lead to the invalidation of patents if they are found to be unpatentable.

Q: What is obviousness-type double patenting (ODP)? A: ODP is a doctrine that prevents subsequent patents from being granted on the same invention or obvious modifications thereof, ensuring that inventors do not extend the term of an already-granted patent.

Q: Why is a thorough patent search important? A: A thorough patent search helps in identifying prior art, assessing the strength of an invention, and determining whether claims need revision to improve patentability.

Q: How can companies benefit from identifying niche patent areas? A: Identifying niche patent areas can help companies focus their resources on less competitive spaces, potentially leading to greater innovation and competitive advantage.

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Details for Patent 5,330,841

ApplicantTradenameBiologic IngredientDosage FormBLAApproval DatePatent No.Expiredate
Grifols Biologicals Llc ALPHANATE antihemophilic factor/von willebrand factor complex (human) For Injection 102475 August 15, 1978 5,330,841 2011-07-19
Grifols Biologicals Llc ALPHANATE antihemophilic factor/von willebrand factor complex (human) For Injection 102475 June 26, 2014 5,330,841 2011-07-19
>Applicant>Tradename>Biologic Ingredient>Dosage Form>BLA>Approval Date>Patent No.>Expiredate
Showing 1 to 2 of 2 entries

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