File Name: Chinese_firm_patent
Observations:
585,650
(Note we
restrict attention to publication years 2005-2010.)
Description:
The purpose of this
file is to separate out patents published 2005-2010 that are owned only by
Chinese firms. Nationality is not
directly reported in the published patent data that we have. To estimate the set of Chinese-firm-owned
patents, we proceed as follows.
First, we restrict
attention to patents first filed in China (which we measure by whether or not a
firm claims foreign priority). Second, we eliminate all patents in the data set
that we constructed earlier of patents that large foreign multinationals either
wholly own or share. Third, we delete
all records with "University" or "Academy" or
"Institute" in the applicant name, so we can focus on firms, not
academic entities.
Fourth, we create a
variable applicant_name_trun
which is a truncated version (first 25 characters, with punctuation removed) of
the applicant name. We group patents on this variable and count the number of
patents for a given value of applicant_name_trun. We sort from the highest value to the
lowest. We manually process the cases with the highest counts to eliminate any
additional foreign firms that we did not take out in the earlier step. In addition, we remove cases (from the
largest patentors) where the applicant is an
individual, rather than a firm. We continue the process until the top 100
values of applicant_name_trun do not include foreign firms or individuals,
based on manual processing (including web searches of the various firm names).
We do not manually
process records outside of the top 100. This is not an issue, because in the
text we focus on the top 100 patentors. At the bottom of this page is a table
presenting the top 100 applicant_name_trun
in terms of patent counts.
Variables
|
Variable |
Type |
Len |
Columns in Ascii File |
Description |
|
applicant_name |
Char |
80 |
1-80 |
Applicant name as originally specified in the patent record |
|
app_numfix |
Char |
12 |
81-92 |
Unique index for each patent record |
|
for_priority |
Char |
1 |
93-93 |
=0 if no foreign priority record. This is so for each record in the file |
|
type |
Char |
8 |
94-101 |
=’Invent’ if an invention patent. This is so for each record in the file |
|
gyear |
Num |
8 |
102-109 |
Year of publication. For this file 2005<=gyear<=2010 |
|
applicant_name_trun |
Char |
25 |
110-134 |
This variable trims punctuation, makes minor changes like converting “CORPORATION” to “CORP’, to making grouping patent by applicant name cleaner. |
|
applicant_count |
Num |
8 |
135-142 |
The number of patents in the file with the given value of applicant_name_trun |
|
applicant_name_rank |
Num |
8 |
143-150 |
The rank of the given applicant_name_trun, in terms of applicant_count. |
Table Showing Distribution of Counts
of Patents Published 2005-2010 for Top 100 Patentors
This table
sorts patents grouped by applicant_name_trun, in decending order of patent counts.
|
|
N |
Mean |
|
|
link_WIPO_or_US |
|||
|
applicant_name_rank |
applicant_name_trun |
20,464 |
0.323 |
|
1 |
HUAWEI TECHNOLOGIES CO LTD |
||
|
2 |
ZTE CORP |
15,446 |
0.224 |
|
3 |
BYD CO LTD |
1,923 |
0.089 |
|
4 |
DATANG MOBILE COMMUNICATIONS EQUIPMENT CO LTD |
1,805 |
0.131 |
|
5 |
SEMICONDUCTOR MANUFACTURING INTERNATIONAL (SHANGHA |
1,508 |
0.080 |
|
6 |
ZHONGXING COMMUNICATION CO LTD |
1,455 |
0.059 |
|
7 |
TENCENT TECHNOLOGY (SHENZHEN) CO LTD |
1,125 |
0.188 |
|
8 |
LENOVO (BEIJING) CO LTD |
1,047 |
0.166 |
|
9 |
CHINA PETROLEUM & CHEMICAL CORP |
1,003 |
0.022 |
|
10 |
SHENZHEN ZTE CORP |
966 |
0.253 |
|
11 |
BAOSHAN IRON & STEEL CO LTD |
948 |
0.014 |
|
12 |
CHINA MOBILE COMMUNICATIONS CORP |
877 |
0.120 |
|
13 |
YOUDA PHOTOELECTRIC CO LTD |
869 |
0.000 |
|
14 |
SUZHOU ANJ BIOTECH CO LTD |
861 |
0.000 |
|
15 |
SINOPEC |
848 |
0.055 |
|
16 |
CHERY AUTOMOBILE CO LTD |
796 |
0.067 |
|
17 |
KONKA GROUP CO LTD |
789 |
0.000 |
|
18 |
BEIJING VIMICRO CORP |
788 |
0.036 |
|
19 |
SHUNDA COMPUTER FACTORY CO LTD SHUNDE DISTRICT FOS |
749 |
0.012 |
|
20 |
YINGYEDA CO LTD |
737 |
0.000 |
|
21 |
SHENZHEN HUAWEI COMMUNICATION TECHNOLOGY CO LTD |
672 |
0.185 |
|
22 |
CHINA PETROCHEMICAL CORP |
617 |
0.036 |
|
23 |
HANGZHOU HUASAN COMMUNICATION TECHNOLOGY CO LTD |
563 |
0.060 |
|
24 |
SAIC CHERY AUTOMOBILE CO LTD |
549 |
0.062 |
|
25 |
CHINA TELECOM CORP LIMITED |
528 |
0.008 |
|
26 |
QUNKANG TECHNOLOGY (SHENZHEN) CO LTD |
522 |
0.331 |
|
27 |
H3C TECHNOLOGIES CO LTD |
505 |
0.055 |
|
28 |
ZTE COMMUNICATION CO LTD |
488 |
0.059 |
|
29 |
SHENZHEN OCEANPOWER INDUSTRY CO LTD |
469 |
0.000 |
|
30 |
HUAWEI DEVICE CO LTD |
463 |
0.289 |
|
31 |
OCEAN POWER CORP |
461 |
0.004 |
|
32 |
TIANJIN SHENGJI GROUP CO LTD |
446 |
0.000 |
|
33 |
SHENZHEN COSHIP ELECTRONICS CO LTD |
441 |
0.186 |
|
34 |
CHINA NATIONAL PETROLEUM CORP |
434 |
0.016 |
|
35 |
SHANGHAI GRACE SEMICONDUCTOR MANUFACTURING CORPORA |
434 |
0.014 |
|
36 |
PETROCHINA CO LTD |
420 |
0.021 |
|
37 |
WUHAN IRON & STEEL (GROUP) CORP |
395 |
0.005 |
|
38 |
OCEANS KING LIGHTING SCIENCE & TECHNOLOGY CO LTD;S |
385 |
0.000 |
|
39 |
SHENZHEN TCL NEW TECHNOLOGY CO LTD |
378 |
0.148 |
|
40 |
KINGDEE SOFTWARE (CHINA) COMPANY LTD |
376 |
0.000 |
|
41 |
CHINA NATIONAL OFFSHORE OIL CORP |
373 |
0.003 |
|
42 |
SHANGHAI HUAWEI TECHNOLOGIES CO LTD |
368 |
0.212 |
|
43 |
CHINA PETROCHEMICAL CO LTD |
362 |
0.022 |
|
44 |
PETROCHINA COMPANY LIMITED |
362 |
0.019 |
|
45 |
CHUNGHWA PICTURE TUBES LTD |
348 |
0.000 |
|
46 |
VIA TECHNOLOGIES INC |
330 |
0.085 |
|
47 |
ALUMINUM CORP OF CHINA LIMITED |
329 |
0.024 |
|
48 |
SHANGHAI MICRO ELECTRONICS EQUIPMENT CO LTD |
325 |
0.009 |
|
49 |
CHONGQING CHANGAN AUTOMOBILE CO LTD |
314 |
0.006 |
|
50 |
SPREADTRUM COMMUNICATIONS (SHANGHAI) INC |
308 |
0.062 |
|
51 |
LIFAN INDUSTRY (GROUP) CO LTD |
307 |
0.000 |
|
52 |
HAIER GROUP |
299 |
0.027 |
|
53 |
ANGANG STEEL COMPANY LIMITED |
285 |
0.004 |
|
54 |
YULONG COMPUTER TELECOMMUNICATION TECHNOLOGY (SHEN |
282 |
0.021 |
|
55 |
TAIDA ELECTRONIC INDUSTRY CO LTD |
281 |
0.007 |
|
56 |
BEIJING VIMICRO CO LTD |
279 |
0.079 |
|
57 |
QINGDAO HISENSE ELECTRIC CO LTD |
277 |
0.000 |
|
58 |
SUNPLUS TECHNOLOGY CO LTD |
277 |
0.000 |
|
59 |
TIANJIN TASLY PHARMACEUTICAL CO LTD |
272 |
0.063 |
|
60 |
BIYADI CO LTD |
271 |
0.111 |
|
61 |
HIGH TECH COMPUTER CORP |
271 |
0.011 |
|
62 |
BEIJING FEITIAN TECHNOLOGIES CO LTD |
266 |
0.241 |
|
63 |
HUASHUO COMPUTER CO LTD |
263 |
0.023 |
|
64 |
LANGCHAO ELECTRONIC INFORMATION INDUSTRY CO LTD |
262 |
0.008 |
|
65 |
MIDEA HOLDING CO LTD |
254 |
0.035 |
|
66 |
BOE TECHNOLOGY GROUP CO LTD |
251 |
0.187 |
|
67 |
SHENZHEN MINDRAY BIOMEDICAL ELECTRONICS CO LTD |
243 |
0.342 |
|
68 |
SICHUAN CHANGHONG ELECTRIC CO LTD |
241 |
0.004 |
|
69 |
NANTONG XINYING DESIGN SERVICE CO LTD |
238 |
0.000 |
|
70 |
SHENZHEN HUAWEI MOBILE COMMUNICATION TECHNOLOGY CO |
238 |
0.265 |
|
71 |
BEIJING T3G TECHNOLOGY CO LTD |
235 |
0.017 |
|
72 |
SHENZHEN HUAWEI TECHNOLOGIES CO LTD |
235 |
0.145 |
|
73 |
TIANJIN ZHONGYING HEALTH FOOD CO LTD |
234 |
0.000 |
|
74 |
NANJING LG PANDA APPLIANCES CO LTD |
231 |
0.004 |
|
75 |
BEIJING NORTH MICROELECTRONICS BASE EQUIPMENT PROC |
227 |
0.084 |
|
76 |
FOUNDER GROUP |
221 |
0.054 |
|
77 |
SEMICONDUCTOR MANUFACTURING INTERNATIONAL (BEIJING |
220 |
0.005 |
|
78 |
LIANHUA ELECTRONIC CO LTD |
217 |
0.005 |
|
79 |
SHENZHEN HAICHUAN INDUSTRY CO LTD |
216 |
0.005 |
|
80 |
YULONG COMPUTER TELECOMMUNICATION SCIENTIFIC (SHEN |
216 |
0.009 |
|
81 |
HANGZHOU H3C TECHNOLOGIES CO LTD |
214 |
0.037 |
|
82 |
INNER MONGOLIA MENGNIU DAIRY INDUSTRY (GROUP) CO L |
214 |
0.000 |
|
83 |
TIANSHILI PHARMACEUTICAL CO LTD TIANJIN |
212 |
0.009 |
|
84 |
HANGZHOU HUAWEI 3COM TECHNOLOGY CO LTD |
209 |
0.077 |
|
85 |
SICHUAN CHANGHONG ELECTRIC APPLIANCE CO LTD |
207 |
0.005 |
|
86 |
KWANG YANG MOTOR CO LTD |
201 |
0.000 |
|
87 |
BEIJING WATCH DATA SYSTEM CO LTD |
198 |
0.076 |
|
88 |
INNOFIDEI TECHNOLOGY CO LTD |
197 |
0.010 |
|
89 |
TENGXUN SCIENCE & TECHNOLOGY (SHENZHEN) CO LTD |
197 |
0.137 |
|
90 |
SANY HEAVY INDUSTRY CO LTD |
196 |
0.296 |
|
91 |
WEISHENG ELECTRONIC CO LTD |
195 |
0.010 |
|
92 |
CISDI ENGINEERING CO LTD |
193 |
0.047 |
|
93 |
SHENZHEN SKYWORTH RGB ELECTRONIC CO LTD |
192 |
0.010 |
|
94 |
SHANXI TAIGANG STAINLESS STEEL CO LTD |
191 |
0.000 |
|
95 |
FOSHAN CITY SHUNDE DISTRICT SHUNDA COMPUTER FACTOR |
190 |
0.000 |
|
96 |
FIBERHOME TELECOMMUNICATION TECHNOLOGIES CO LTD |
189 |
0.021 |
|
97 |
HAIER GROUP CORP |
189 |
0.016 |
|
98 |
INNER MONGOLIA YILI INDUSTRIAL GROUP CO LTD |
186 |
0.000 |
|
99 |
H3C TECHNOLOGIES CO LIMITED |
185 |
0.022 |
|
100 |
NEWAUTO (BEIJING) VIDEO TECHNOLOGY CO LTD |
185 |
0.000 |