The following table shows the ranking of United States IP law firm. The ranking is based on the following conditions.
- Technical field: Weapon (gun lock device, holster, magazine carrier, barrel for a firearm, rifle scope, ballistic vest, etc.)
- Status: United States granted patents in 2018 (registration date).
- Count: The number of patents represented by each United States IP law firm, attorney or agent was counted. Even if attorney or agent belongs to a law firm, they were counted separately.
|Ranking||No.||IP law firm|
|1||28||Langlotz Patent & Trademark Works Inc|
|2||26||Bennet K Langlotz|
|3||22||Shaddock Law Group|
|4||18||Kilpatrick Townsend & Stockton|
|5||16||Christensen Fonder Dardi & Herbert|
|6||15||Donald J Ersler|
|9||13||Eversheds Sutherland (US)|
|12||12||Lee & Hayes|
|13||11||Merchant & Gould|
|15||10||John A Chionchio Esquire|
|16||10||Dorsey & Whitney|
|17||9||Knobbe Martens Olson & Bear|
|18||9||Snell & Wilmer|
|19||9||Finch & Maloney|
In the patent search, it was confirmed that a high-accuracy population (i.e., a population not including non-relevant fields) of patents was obtained. Subsequently, the population was used to create the table.
By entering the Firm name in the "Attorney or Agent" column of USPTO database, you can find the patent information handled by each Firm.