Free for 2 months. Then $5.97 per month (that is approximately 10 cents a day). Updated once a month.

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Source - US Patent Office and/or various websites

Here is a sample of what you will get in the subscription:

1. Reward Candy Dispenser

Patent:

US 5823386 A
Published: 10/20/1998

As any multitasker knows, it can feel impossible to sit at a computer and focus on work that needs to get done. What if something happens on Facebook? How can you focus until you know who’s on the Wikipedia page of left-handed historical figures? To force concentration, many resort to draconian measures like limiting Internet use or (gasp!) going offline altogether. But the inventors of this tool tap into what behavioral scientists and kindergarten motivational speakers have long known: Treats get results.

The Reward Candy Dispenser for Personal Computers is positive reinforcement for desk jockeys. An optical sensor attaches to your screen to keep an eye on what you’re doing. When you achieve your target (say, sending that email or reading all the way through a long news story), a signal is sent to a container on your desk, and, as with a gumball machine, a single piece of candy is released into a chute. Want another? Get more work done! Lab-rat life never tasted so good.

 

2. LEAF GATHERING TROUSERS

Patent:

US 6604245 B1
Published: 8/12/2003

With fall comes the ultimate scourge of lawn work: raking leaves. All of those gorgeous, oxygen-giving trees in your yard become instruments of torture, fiendishly littering their leafy bounty all over the lawn and sidewalk.

According to the inventor of the leaf pants, the leaves aren’t the problem. It’s the rake—that pronged horticultural nightmare that strains backs, blisters hands, and poses a real threat if left lying in tall grass. But a leaf blower isn’t the answer either. Instead, the inventor insists, what humanity needs is a method that is “compatible with the natural body movement of a person.”

Enter leaf chaps, a pair of zip-on flexible tubes that slip over pant legs with a net fastened between the two so you can gather leaves as you stroll. The net corrals the leaves and collects them in front of you, so with just a few extra steps, you’re forming piles that are easily picked up later. Not merely convenient, the chaps also promise to make you more productive. Rather than struggle with bulky tools, do something you’d be doing anyway (walking around your lawn), while getting work done! Sure, that walk is more like a waddle, but that’s the price you pay for innovation.