Expired Patent Awareness System

BDTwo Patent Monitoring

Blooms (Plant Patents), Designs (Design Patents) & Developments (Utility Patents) distributed via Big Data.

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Patents Search Results for Utility Patent Number 7399522


Utility Patent #7399522: HEAT-RESISTANT FILTER ELEMENT AND METHOD FOR PRODUCTION THEREOF


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Application Number: 10493887
Filing Date: 2004-11-19
Description, Images, Claims, Inventor, and history on Google Patents
USPC Classification: 428
USPC Subclassification: 304400
Application Status: Patented Case
Status Date: 2008-06-25
Patent Issue Date: 2008-07-15
Expected Expiration: 2024-11-19

Patent #7399522 is in USPC Patent Class 428 and Subclass 304400.

Macro View of Patent Class 428

Patent Class Description: Stock material or miscellaneous articles
This patent was applied for in 2004. Below is a comparison of Invention Rates in the preceding and proceeding 3 years for Patent Class 428:
Inventions in 20015135Change in %
Inventions in 200251891.05%
Inventions in 200353713.51%
Inventions in 20045262-2.03%
Inventions in 200553311.31%
Inventions in 20065137-3.64%
Inventions in 2007589114.68%

Micro View of Patent Class 428 & Subclass 304400

Patent Subclass Description (on USPTO.gov)
This patent was applied for in 2004. Below is a comparison of Subclass Invention Rates in the preceding and proceeding 3 years for Patent Subclass 304400:
Inventions in 200129Change in %
Inventions in 20024141.38%
Inventions in 200321-48.78%
Inventions in 20042833.33%
Inventions in 200522-21.43%
Inventions in 200617-22.73%
Inventions in 20072970.59%

Patent #7399522 NAICS (North American Industry Classification System)

Patents with USPC Class 428 typically affect these industries.

Macro View of USPC 428 to NAICS

USPC to NAICS probabilities:
USPC ClassNAICS CodeDescriptionAllocation
42831Manufacturing2.107%
42832Manufacturing93.133%
42833Manufacturing4.76%

Why don't the percentages in MACRO and MICRO Match?

There are rounding errors experienced when converting USPC Classes to NAICS codes. Items with less than ~2.5% influence in a category are removed for clarity. For instance, multiple Micro classes can sum up to a Macro class greater than 2.5% without being delineated. Or a Macro view shows a number far larger than the sum of Micro categories because many small contributors were not shown. Eliminating categories (Macro or Micro) with less than ~2.5% influence results in small differences between the figures above and those below (to the right).
Click for reference papers.

Micro View of USPC 428 to NAICS

USPC to NAICS probabilities:
USPC ClassNAICS CodeDescriptionAllocation
428313Textile Mills4.939%
428322Paper Manufacturing9.367%
428325Chemical Manufacturing66.115%
428326Plastics and Rubber Products Manufacturing7.536%
428327Nonmetallic Mineral Product Manufacturing3.139%
428331Primary Metal Manufacturing8.904%