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 7551532


Utility Patent #7551532: METHOD OF AND APPARATUS FOR RECORDING DATA ON WRITE-ONCE DISC, METHOD OF AND APPARATUS FOR REPRODUCING DATA FROM WRITE-ONCE DISC, AND WRITE-ONCE DISC THEREFOR


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Application Number: 11018225
Filing Date: 2004-12-22
Description, Images, Claims, Inventor, and history on Google Patents
USPC Classification: 369
USPC Subclassification: 047140
Application Status: Patented Case
Status Date: 2009-06-03
Patent Issue Date: 2009-06-23
Expected Expiration: 2024-12-22

Patent #7551532 is in USPC Patent Class 369 and Subclass 047140.

Macro View of Patent Class 369

Patent Class Description: Dynamic information storage or retrieval
This patent was applied for in 2004. Below is a comparison of Invention Rates in the preceding and proceeding 3 years for Patent Class 369:
Inventions in 20011618Change in %
Inventions in 20021362-15.82%
Inventions in 2003156614.98%
Inventions in 2004204030.27%
Inventions in 200520791.91%
Inventions in 20061997-3.94%
Inventions in 20071917-4.01%

Micro View of Patent Class 369 & Subclass 047140

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 047140:
Inventions in 20016Change in %
Inventions in 2002716.67%
Inventions in 200325257.14%
Inventions in 200419-24.00%
Inventions in 20052215.79%
Inventions in 20062722.73%
Inventions in 200718-33.33%

Patent #7551532 NAICS (North American Industry Classification System)

Patents with USPC Class 369 typically affect these industries.

Macro View of USPC 369 to NAICS

USPC to NAICS probabilities:
USPC ClassNAICS CodeDescriptionAllocation
36933Manufacturing100%

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 369 to NAICS

USPC to NAICS probabilities:
USPC ClassNAICS CodeDescriptionAllocation
369333Machinery Manufacturing16.578%
369334Computer and Electronic Product Manufacturing83.422%