Keep Your Drink Warm with some IP

You know what I really appreciate? Travel coffee/tea/whatever mugs that keep my beverage hot for hours. And not just a couple, but for 5 or so. Up until recently, I'd been using the same one for well over a decade because it was so incredibly effective. Unfortunately, it finally broke, and I was forced to use a newer version of the same container--only to find that it's not nearly as good! What happened?

I know for a fact that my old travel mug had multiple patents (this is me, of course I looked). Why abandon them? Ok, aside from the fact that given the age of my tumbler, they had likely passed into public domain (remember, patents have specific time limits). But that doesn't mean they couldn't continue to use the same design.

In celebration of the life of the coffee mug I loved and lost, and in hopes that the new one I bought for my husband's birthday is better--despite being the same brand--let us look at some Contigo (owned by Ignite USA) coffee tumbler lid patents. 

Please pay no mind to the table chaos in the background

There are three listed on the base of my current tumbler: 7,546,933, 7,997,442, and D564,841. Without looking them up, I can tell you immediately that these are not at all new and have quite likely passed into public domain. Since it also claims patent pending, I must assume newer tech is also at work. Let's look for the newer ones. Also, both of the utility patents are continuations within the same family and don't appear to be the tech behind the particular mug they're printed on, which makes them even less interesting for this entry. 

Also, I'm going to stick to utility patents, because that would be more relevant to the ability to keep my coffee warm for long periods. 

Contigo/Ignite USA haven't been very active lately when it comes to patents, as it turns out. There is nothing more recent than 2020--either granted or in application phase. This is a little disappointing, but perhaps their business plan has its reasons.

Let's look at US 10,336,513 Lid Having a Pre-venting Lid Lever and a Seal Arm Assembly. It looks moderately similar to what I have, but not quite the same. I think it's a different model; perhaps it is more effective. Maybe I should buy more tumblers and find out!

A diagram of the lid assembly from US 10,336,513

Next up is US 10,455,959 Portable Beverage Container with a Robust and Easily Cleanable Seal Mechanism. It's nothing like the coffee tumblers I know--it looks more like it is intended for chilled beverages, with the straw-like opening.

This image makes the lid look impossibly complicated

Finally, we have US 10,898,017 No-Spill Drinking Container, that again looks more like it is for a chilled beverage, similar to the above. In fact, they might be for the same whole bottle, just different parts.

It is hard to spill when drinking with a straw

 

How disappointing! None of these are for my coffee mug and none of them explain why the newer version is less effective. Perhaps more research of other patents and other patent office databases would be required.