Bridgestone Corporation Patent Portfolio Statistics

Bridgestone Corporation

Profile Summary

This article summarizes the perfomance of the assignee in the recent years. The overall statistics for this portfolio help to analyze the areas where the assignee is performing well. The filing trend, perfomance across the tech centers and the perfomance of the recent applications has been mentioned below. All the stats are calculated based on the perfomance in USPTO.

How does the overall patent portfolio of Bridgestone Corporation look like?

Total Applications: 4,368
Granted Patents: 2,718
Grant Index 68.95 %
Abandoned/Rejected Applications: 1,224 (31.05%)
In-Process Applications: 423
Average Grant Time: 2.9 Years
Average Office Actions: 1.86

Which Technology Area Bridgestone Corporation is filing most patents in? (Last 10 years)

Art Unit Definition Total Applications
1747 Tires, Adhesive Bonding, Glass/Paper making, Plastics Shaping & Molding 541
1749 Tires, Adhesive Bonding, Glass/Paper making, Plastics Shaping & Molding 358
1762 Oraganic Chemistry, Polymers, Compositions 277
1733 Metallurgy, Metal Working, Inorganic Chemistry, Catalyst, Electrophotography, Photolithography 216
1765 Oraganic Chemistry, Polymers, Compositions 196

How many patents are Bridgestone Corporation filing every year?

Year Total Applications
2022 0*
2021 138*
2020 195
2019 249
2018 208

*The drop in the number of applications filed in last two years compared to previous years is because applications can take up to 18 months to get published

Recently filed patent applications of Bridgestone Corporation in USPTO?

Publication number: US20220016935A1
Application number: 17/593,637

Abstract:
In a tire, a plurality of outer resonators (25) are formed in an outer land portion (28) partitioned by two outer main grooves (21, 22) and arranged in a tire circumferential direction, a plurality of inner resonators (26) are formed in an inner land portion (29) partitioned by two inner main grooves (23, 24) and arranged in the tire circumferential direction, the outer resonator includes a first vertical groove (31) which extend in the tire circumferential direction, and a first branch groove (32) and a second branch groove (33) which have an inner volume smaller than that of the first vertical groove, extend in the tire width direction from both end portions of the first vertical groove in the tire circumferential direction such that the first branch groove and the second branch groove extend in directions opposite to each other, and are respectively opened to the two outer main grooves, and the inner resonator includes a second vertical groove (36) which extends in the tire circumferential direction, and a third branch groove (37) and a fourth branch groove (38) which have an inner volume smaller than that of the second vertical groove, extend in the tire width direction from the second vertical groove such that the third branch groove and the fourth branch groove extend in directions opposite to each other, and are respectively opened to the two inner main grooves.

Publication date: 2022-01-20
Applicant: Bridgestone Corporation
Inventors: Fujita Shungo


Publication number: US20210388204A1
Application number: 17/461,197

Abstract:
A polymer blend including an organic polymer with a reactive silicon-containing group which gives cured objects excellent elongation property and stress relaxation, a composition including the polymer blend, a specific filler, and a curing catalyst, a sealant including the composition; and a sealant for tires, are provided. A polymer blend including an organic polymer with a bifunctional reactive silicon-containing group of a specific structure is mixed with polyoxyalkylene (A). Polyoxyalkylene (A) has an average molecular weight of 13,000 or higher and 100,000 or lower, a reactive-silicon-containing-group equivalent Eqa of 0.010 mmol/g or more and 0.29 mmol/g or less, and contains more than one silicon-containing group per molecule and polyoxyalkylene (B). Polyoxyalkylene (B) has an average molecular weight of 3,000 or higher and 25,000 or lower, a reactive-silicon-containing group only at one end, and a reactive-silicon-containing-group equivalent Eqb of 0.03 mmol/g or more and 0.58 mmol/g or less.

Publication date: 2021-12-16
Applicant: Bridgestone Corporation
Inventors: Nakashima Tohru


Publication number:
Application number: 17/434,252

Abstract:
None

Publication date:
Applicant: Bridgestone Corporation
Inventors: Kurata Takayuki


How are Bridgestone Corporation’s applications performing in USPTO?

Application Number Title Status Art Unit Examiner
17/593,637 Tire Docketed New Case – Ready for Examination OPAP Central, Docket
17/461,197 Polymer Blend, Composition, Sealant, And Sealant For Tire Docketed New Case – Ready for Examination OPAP Central, Docket
17/434,252 Run-Flat Tire
17/431,844 Mold Container Device, And Tire Vulcanizer
17/431,623 Tire Vulcanization System, And Vulcanized Tire Manufacturing Method Docketed New Case – Ready for Examination OPAP Central, Docket