Dynamic Crawler Agent with High Stash: Batch Downloading of Patent Databases and Analysis of Technological Innovations

What's the point of this thing? Why Patent Data Needs a "Stealth" Agent

Engaged in patent data collection understand, ordinary crawlers like wearing big pants shopping malls - at any time may be security frame out. A lot of patent platform anti-climbing mechanism than the supermarket security door is sensitive, you continuously download 10 PDF may trigger the CAPTCHA, the more ruthless directly block your IP is not negotiable.

At this time, the high stash of proxies is like wearing a full set of invisibility cloak, each request for a different "vest". For example, with ipipgo's dynamic residential IP, each request is randomly assigned to the real home broadband IP, so that the platform thinks that this is a myriad of real users browsing, and even the opportunity to seal the IP are not given.

Take a real example:A science and technology company wants to analyze the patent trend in a certain field in ten years, manual downloads are exhausting, and the ordinary proxy is frequently blocked. After switching to ipipgo's dynamic IP, it automatically switches 200+ IPs of different regions every hour, and catches 200,000 patent data in three days without even triggering the CAPTCHA.

Don't Get Pitted! You have to look at these 3 hits to choose a proxy IP

Proxy services on the market are a mixed bag, and many of those claiming to be "highly anonymous" are actually data center IPs, which can be broken in minutes. Remember these three core indicators:

ipipgo is really tough in this area, their 90 million + IP pool is all real home broadband. When I helped a friend test it, I found that when I used their IP to access the Patent Office website, the ISP information displayed was that of a regular broadband operator, unlike some service providers that display "XX data centers".

Hands-on teaching: three strokes to deal with batch downloads

Here's one.Key details: Don't write dead proxy configurations in your code! It is recommended to call it dynamically with an environment variable like:

import os
proxy = os.environ.get('IPIPGO_PROXY')
requests.get(url, proxies={"http": proxy, "https": proxy})

With ipipgo's API to obtain IP dynamically, every hour automatically replaced. The actual test of an international patent library download, with this method for 72 hours without turning over, the success rate remains above 98%.

I'll teach you one more thing.Anti-Detection TipsDon't use a fixed User-Agent! It's better to switch browser fingerprints randomly every 50 requests, with a proxy IP change of pace, so that the anti-crawling system is completely confused.

Frequently Asked Questions First Aid Kit

Q: What should I do if my IP is blocked halfway through the download?
A: Check if you are using a data center IP, change it to ipipgo's residential IP. if it doesn't work, shorten the IP replacement cycle, it is recommended to change a batch every 5 minutes.

Q: How do you get cross-border patent data?
A: ipipgo supports pinpointing IPs by country, for example, if you want to place a Japanese patent, you can choose residential IPs in Tokyo/Osaka, and local access will not be suspected.

Q: I'm afraid of being limited by the speed limit when I have a huge amount of data?
A: Enable multi-threaded distribution and split the task to different regional IPs for simultaneous download. A customer used this method to break through from 3G to 200G downloads in a single day.

Technological innovation analysis can still be played this way

Getting the data is just the beginning, the real gold mine is in the analytics. Name it.flirty trick: Grabbing the application records of the same patent in different regions with different national IPs can dig out the technology layout strategy of an enterprise.

For example, a new energy battery patent, using ipipgo's U.S. IP to find out that it was applied for in Texas five years ago, and using Germany's IP to find out that it has recently added a new sub-patent in Munich, we can immediately determine that they want to build a plant in Europe with strategic intent.

This trick is much faster than reading financial reports, and the data comes from official patent libraries, which is ten times more reliable than brokerage analysis. The key is that the whole process is completely legal and compliant, using residential IP to collect public data, not only do not touch the red line but also get hardcore intelligence.

Lastly, I would like to remind you that if you want to do long-term monitoring, it is recommended to use ipipgo's static residential IP+dynamic IP mixed mode. Fix a few IPs for daily inspection, and cut to the dynamic pool when collecting large quantities, so that it is stable and does not expose the collection pattern.