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Anonymous Posted 18 years ago
Grammar

it is about use of "that of " in comparision sentences

I have run into the following questions. Thanks for anyone in advance for any fix

Q 1

"The present invention has any advantageous effect different from that of demonstrated invention."

My question is "should the use of that in the above be considered incorrect grammatically" So, the above sentence should be rendered like
this " The present invention has any advantageous effect different from the demonstrated invention."

Q 2

Likewise,

" There has been no constitutional difficulty or advantageous effect therefrom different from that of another demonstrated invention."

In the same vein as under Q 1, should the use of "that of" in the above be considered grammtically incorrect. I am a little unsure whether the above sentence is grammtically correct or not.
Should the above sentnece be rendered as " There has been no constitutional difficulty or advantageous effect therefrom different from another demonstrated invention."

Q 3

" The invention of Claim 1 is obvious over D1 (another demonstrated invention) for the same reason as set forth under Reason A. Should this sentence be changed to
"the invention of Claim 1 is obvious over that of D1." When comparison is made between the invention of Claim 1 and invention arising from D1.

And also I am wondering about what your impression of the "the invention of Claim 1 is obvious over D1 (another demonstrated invention) when you first look at this sentence.
What your impression or your instant interpretation of this given sentence above when you first look at it or after some pausing moments to look at it.

Thanks for your answers and time in advance
  

Top answer

Hi, These are very odd sentences, whether with or without 'that'. May I ask where you found them? eg I have no idea what this means.

  • Hi, These are very odd sentences, whether with or without 'that'.
  • May I ask where you found them?
  • eg I have no idea what this means.
  • " Best wishes, Clive
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5 Answers
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Hi,
These are very odd sentences, whether with or without 'that'. May I ask where you found them?

eg I have no idea what this means. "The present invention has any advantageous effect different from that of demonstrated invention."

Best wishes, Clive
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I gues the meaning of all original sentences is as follows.

you can substitute a quoted invention for the demonstrated invention. Then, all the sentences may make sense.

All the three sentences ask you of whether you should include "that" or discard "that" when comparing two inventions where
one invention has an advantageous effect such as efficiey is vastly increased or s
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  1. who are you
  2. what do want
  3. what is your question
  4. why do you want to know the awnser
comparision sentences are four
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Hi,
  1. who are you
  2. what do you want
  3. what is your question
  4. why do you want to know the answer
  5. comparision sentences are four

    In addition to my two edits, you need to add capital letters and question marks.

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