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 7920238


Utility Patent #7920238: POLARIZER AND LIQUID-CRYSTAL DISPLAY APPARATUS HAVING REDUCED POLARIZATION STATE IN OBLIQUE VIEWING ANGLES


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Application Number: 11038092
Filing Date: 2005-01-21
Description, Images, Claims, Inventor, and history on Google Patents
USPC Classification: 349
USPC Subclassification: 118000
Application Status: Patented Case
Status Date: 2011-03-16
Patent Issue Date: 2011-04-05
Expected Expiration: 2025-01-21

Patent #7920238 is in USPC Patent Class 349 and Subclass 118000.

Macro View of Patent Class 349

Patent Class Description: Liquid crystal cells, elements and systems
This patent was applied for in 2005. Below is a comparison of Invention Rates in the preceding and proceeding 3 years for Patent Class 349:
Inventions in 20021193Change in %
Inventions in 2003136714.59%
Inventions in 2004164320.19%
Inventions in 200518019.62%
Inventions in 2006212417.93%
Inventions in 20072018-4.99%
Inventions in 200821767.83%

Micro View of Patent Class 349 & Subclass 118000

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 118000:
Inventions in 20023Change in %
Inventions in 20036100.00%
Inventions in 200460.00%
Inventions in 200560.00%
Inventions in 20061183.33%
Inventions in 20077-36.36%
Inventions in 20081271.43%

Patent #7920238 NAICS (North American Industry Classification System)

Patents with USPC Class 349 typically affect these industries.

Macro View of USPC 349 to NAICS

USPC to NAICS probabilities:
USPC ClassNAICS CodeDescriptionAllocation
34923Construction4.387%
34931Manufacturing2.438%
34932Manufacturing33.854%
34933Manufacturing59.321%

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 349 to NAICS

USPC to NAICS probabilities:
USPC ClassNAICS CodeDescriptionAllocation
349236Construction of Buildings3.346%
349311Food Manufacturing2.33%
349325Chemical Manufacturing37.541%
349326Plastics and Rubber Products Manufacturing2.085%
349332Fabricated Metal Product Manufacturing2.47%
349333Machinery Manufacturing7.404%
349334Computer and Electronic Product Manufacturing44.824%