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 7588686


Utility Patent #7588686: DUAL POROSITY FILTER


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Application Number: 10519025
Filing Date: 2004-12-22
Description, Images, Claims, Inventor, and history on Google Patents
USPC Classification: 210
USPC Subclassification: 767000
Application Status: Patented Case
Status Date: 2009-08-26
Patent Issue Date: 2009-09-15
Expected Expiration: 2024-12-22

Patent #7588686 is in USPC Patent Class 210 and Subclass 767000.

Macro View of Patent Class 210

Patent Class Description: Liquid purification or separation
This patent was applied for in 2004. Below is a comparison of Invention Rates in the preceding and proceeding 3 years for Patent Class 210:
Inventions in 20011763Change in %
Inventions in 2002194410.27%
Inventions in 20031878-3.40%
Inventions in 200419604.37%
Inventions in 20051957-0.15%
Inventions in 20061857-5.11%
Inventions in 200720329.42%

Micro View of Patent Class 210 & Subclass 767000

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 767000:
Inventions in 200110Change in %
Inventions in 20025-50.00%
Inventions in 200319280.00%
Inventions in 200413-31.58%
Inventions in 20057-46.15%
Inventions in 200614100.00%
Inventions in 20071828.57%

Patent #7588686 NAICS (North American Industry Classification System)

Patents with USPC Class 210 typically affect these industries.

Macro View of USPC 210 to NAICS

USPC to NAICS probabilities:
USPC ClassNAICS CodeDescriptionAllocation
21011Agriculture, Forestry, Fishing and Hunting3.551%
21022Utilities39.042%
21023Construction25.081%
21031Manufacturing4.96%
21032Manufacturing11.569%
21033Manufacturing15.797%

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 210 to NAICS

USPC to NAICS probabilities:
USPC ClassNAICS CodeDescriptionAllocation
210112Animal Production and Aquaculture2.733%
210114Fishing, Hunting and Trapping3.249%
210221Utilities35.952%
210236Construction of Buildings23.052%
210311Food Manufacturing3.948%
210322Paper Manufacturing4.052%
210325Chemical Manufacturing2.933%
210327Nonmetallic Mineral Product Manufacturing2.599%
210332Fabricated Metal Product Manufacturing2.719%
210333Machinery Manufacturing16.468%
210339Miscellaneous Manufacturing2.296%