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 7331765


Utility Patent #7331765: TWO-SWEEP ROTARY WING BLADE WITH LIMITED TAPER RATIO


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Application Number: 11038231
Filing Date: 2005-01-21
Description, Images, Claims, Inventor, and history on Google Patents
USPC Classification: 416
USPC Subclassification: 228000
Application Status: Patented Case
Status Date: 2008-01-30
Patent Issue Date: 2008-02-19
Expected Expiration: 2025-01-21

Patent #7331765 is in USPC Patent Class 416 and Subclass 228000.

Macro View of Patent Class 416

Patent Class Description: Fluid reaction surfaces (i.e., impellers)
This patent was applied for in 2005. Below is a comparison of Invention Rates in the preceding and proceeding 3 years for Patent Class 416:
Inventions in 2002329Change in %
Inventions in 2003314-4.56%
Inventions in 200444842.68%
Inventions in 20054858.26%
Inventions in 200658119.79%
Inventions in 20076206.71%
Inventions in 200868410.32%

Micro View of Patent Class 416 & Subclass 228000

Patent Subclass Description (on USPTO.gov)
This patent was applied for in 2005. Below is a comparison of Subclass Invention Rates in the preceding and proceeding 3 years for Patent Subclass 228000:
Inventions in 20028Change in %
Inventions in 20036-25.00%
Inventions in 20042-66.67%
Inventions in 2005350.00%
Inventions in 20067133.33%
Inventions in 20076-14.29%
Inventions in 20081066.67%

Patent #7331765 NAICS (North American Industry Classification System)

Patents with USPC Class 416 typically affect these industries.

Macro View of USPC 416 to NAICS

USPC to NAICS probabilities:
USPC ClassNAICS CodeDescriptionAllocation
41623Construction5.509%
41633Manufacturing94.491%

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 416 to NAICS

USPC to NAICS probabilities:
USPC ClassNAICS CodeDescriptionAllocation
416236Construction of Buildings2.571%
416333Machinery Manufacturing90.038%
416336Transportation Equipment Manufacturing7.391%