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Patent Infringement
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   Infringement
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   Author  Topic: Infringement  (Read 1029 times)
shannu
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Infringement
« on: Oct 23rd, 2007, 6:37am »
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All:
 
The query pertaining to infringement:
 
I gone through a US Patent claiming a process wherein a mixture of acid, phosphorous halide and a dehydrating agent is used.  
 
Further I encounter a US application (published in 2007) claiming a process wherein phosphorous trihalide and dehydrating agent is used (acid is avoided).  
 
There is no literal infringement however I want to know if there is an infringement under DOE? Please comments
 
Regards
 
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alconada
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Re: Infringement
« Reply #1 on: Oct 29th, 2007, 1:09pm »
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Do the prior art and your claimed process result in the same end product?
 
If yes,
 
are both processes comparable in terms of yield, etc?
 
If yes,
 
I would say that there is infringement under DOE because the acid is an arbitrary addition to the reaction without any technical effect.
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DJoshEsq
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Re: Infringement
« Reply #2 on: Oct 29th, 2007, 3:07pm »
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DOE CANNOT be used to eliminate an element of the claims.
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D. Joshua Smith, Esq.
Registered Patent Attorney
McDonald Hopkins, LLC
Cleveland, OH
216-348-5400
JSonnabend
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Re: Infringement
« Reply #3 on: Oct 30th, 2007, 10:45am »
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on Oct 29th, 2007, 3:07pm, DJoshEsq wrote:
DOE CANNOT be used to eliminate an element of the claims.

While that may be true, there might be infringement nonetheless.  If senior patent X claims A + B and junior patent Y claims A + B + C, chances are, the implementation of patent Y infringes patent X.  No DOE required to "eliminate" anything.
 
- Jeff
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SonnabendLaw
Intellectual Property and Technology Law
Brooklyn, USA
718-832-8810
JSonnabend@SonnabendLaw.com
DJoshEsq
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Re: Infringement
« Reply #4 on: Nov 2nd, 2007, 1:20pm »
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on Oct 30th, 2007, 10:45am, JSonnabend wrote:

While that may be true, there might be infringement nonetheless.  If senior patent X claims A + B and junior patent Y claims A + B + C, chances are, the implementation of patent Y infringes patent X.  No DOE required to "eliminate" anything.
 
- Jeff

 
Well that is obvious.  I understood the question to be can patent claiming A+B+X sue someone for using A+B...then the other guy posted that maybe under DOE.
 
Now as I reread the question, in jumbled English it talks about patent application and patent process.  So it is unclear, to me, what the question is...
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D. Joshua Smith, Esq.
Registered Patent Attorney
McDonald Hopkins, LLC
Cleveland, OH
216-348-5400
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