Lots of patents, how many are real products?

Patent Number: 20090180199
EF 35-70 f/2.8 IS
EF 28-70 f/2.8 IS

I posted this a few days ago and removed it because I didn't really understand it.

Patent Number: 20090201585
EF 600 f/4 DO
EF 70-300 f/4.5-5.6
EF 28-35 f/1.6-2.1

Patent Number: 20090284847
EF 14 f/2.8
EF 24 f/2.8
EF 300 f/4 IS
EF 400 f/2.8 IS

As always with patents, I really don't speak their language and a lot can be lost in the translation. I'll keep this posted and let you folks dissect them.

thanks [NL]

cr

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26 Comments

  1. With a shorter zoom range, the IQ would probably be very close to prime quality. If they price this one right, say $250-$350 maybe, this lens will be interesting. :)

  2. Eeeh i don’t think so… The 35 1.4 will deduct some $1500 from your bank account ;) (at least around here). Oh, and the notion that new weird-tech never comes cheap. IS still has a major price premium as well, DO is even weirder. I’d fear a price of $1000 to $1500 at least. If it’s sharp, add another 500.

  3. Just because something is patented does not mean that it will become a product. I expect that searching through patents for lens products is giving us an eye on what gets made internally (in trial products) and not necessarily a reflection of what gets run up as a consumer product.

    It is better to patent something that might become a real product, early on, because of the length of time it takes for patents to be approved.

    If you looked through the entire patent catalogue, I’m sure you will find many patents that apply to things that never saw the light of day, for one reason or another.

  4. For example, why do they mention both the 35-70/2.8IS and 28-70/2.8IS in one patent? I doubt very much that Canon would make *both* of these lenses – and why these instead of a continuation of the 24-70/2.8 as an IS?

    My guess is that they’ve manufactured sample products of both, patented them (in the aforementioned patent) and then proceeded to evaluate them with testers, etc, to determine which one gets the nod and which one does not.

    The patent bit protects them should a test unit fall into the wrong hands (either deliberately or not) after it leaves their R&D labs.

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