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About product and suppliers:
        Alibaba.com offers 3,761 patent pen products. About 2% of these are ballpoint pens, 1% are plastic pens, and 1% are gift sets. 

A wide variety of patent pen options are available to you, such as ballpoint pen, fountain pen. You can also choose from plastic, metal, and rubber. As well as from promotional pen, business gift, and office & school pen. And whether patent pen is no, or yes. 

There are 3,761 patent pen suppliers, mainly located in Asia. The top supplying country is China (Mainland), which supply 100% of patent pen respectively. 

Patent pen products are most popular in North America, Western Europe, and Central America. 

You can ensure product safety by selecting from certified suppliers, including 712 with ISO9001, 509 with Other, and 505 with GMP certification.