Why are there two patents with same title

W

Weng Tianxiang

Guest
Hi,
Why are there two patents with same title?

What are their major purposes?

For example: Altera patents:
6,859,065 Use of dangling partial lines for interfacing in a PLD
6,653,862 Use of dangling partial lines for interfacing in a PLD

In the latest patent, it contains the following statements:

This application is a continuation of U.S. patent application Ser. No.
10/140,911 filed on May 6, 2002, now U.S. Pat. No. 6,653,862, which
claims priority to U.S. Provisional Application Ser. No. 60/289,346,
filed May 6, 2001, and entitled "Use of Dangling Partial lines for
Interfacing in a PLD."

Thank you.

Weng
 
The first claim in 6,859,065 is:

A programmable logic device (PLD), comprising:

a plurality of logic elements (LE's) arranged in an array;

a signal routing architecture including a plurality of signal routing
lines to route signals among the LE's; and

a plurality of signal drivers along each of the signal routing lines,

wherein

for each of the signal routing lines, [*]

the drivers along that signal routing line are spaced along that signal
routing line; [**]

for each of a first set of at least some of the signal routing lines,

that signal routing line is substantially interrupted by an interface
region such that a partial signal routing line is formed for that
signal routing line between the interface region and a driver along
that signal routing line from the interface region; and

the PLD further comprises an input driver configured to drive from the
interface region along the partial signal routing line formed for that
signal routing line.


In patent 6,653,862 the first claim is the same except it also includes


* that signal routing line has an integer N associated with the signal
routing line;

and

** at an interval of N LE's for that line;

So the first claim of the '065 patent is broader than the first claim
of the '862 patent.
 
Hi,
Thank you very much.

You means if two patents have same titles, usually the later one
contains claims broader than ones claimed in the first patent to expand
their patent right coverage.

1. Are there any other situations that trigger the repeated patent with
same title as previous one? Because I found it is very common to have
two patents having the same titles.

2. Is it right that It seems the lawyer who wrote the claims for first
patent and missed something is at the fault? May it double the money to
support two patents for a long term period?

Now I have a question:
If a provisional application for patent A that contains patent B
partial new material is filed earlier than provisional application for
patent B, can I use the continuation-in-part to claim priority data of
patent A for patent B? Or I will lose the right for patent B that is
disposed earlier in patent A application?

What is the best strategy for two provisional patent applications that
have overlapped materials to file with the larger one being ready
first.

Weng
 
In message <1130638555.303033.171900@g49g2000cwa.googlegroups.com>, Weng
Tianxiang wrote:
What is the best strategy for two provisional patent applications that
have overlapped materials to file with the larger one being ready
first.

Note that the way the US does patents is different from much of the rest of
the world so answers may depend on what you want to file and where.
--
Dave
mail da ve@llondel.org (without the space)
http://www.llondel.org/
So many gadgets, so little time...
 

Welcome to EDABoard.com

Sponsor

Back
Top