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About me

I handle serious injury automobile accidents, motorcycle accidents, truck/big rig accidents involving brain injuries, bone fractures, cervical, thoracic and lumbar disc injuries and other injuries requiring surgery or which cause permanent residual injuries. I also handle products liability and wrongful death cases. 


I was admitted to the California State Bar in 1989 and have been handling personal injury cases for 25 years. Unlike many other attorneys who only have a Juris Doctor Degree, I obtained a Master of Laws Degree from McGeorge School of Law, Sacramento, CA, in 1990 above my Juris Doctor Degree. In the year 2000, at age 36, I was the youngest named partner at the highly prestigious personal injury law firm of Wilcoxen, Montgomery, Harbison and Hinrichsen before opening my own firm on February 4, 2001. I run a highly efficient boutique personal injury firm with two very professional staff members.  


Photos and videos

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Practice areas


  1. Car Accident: 50%
  2. Brain Injury: 15%
  3. Trucking Accident: 15%
  4. Motorcycle Accident: 15%
  5. Defective Products: 5%



Contingent (25-40%), Free consultation (60 minutes)

Attorney endorsements

12 total 

Are you an attorney? Endorse this lawyer

  • Brett Evan Gowen

    I endorse this Attorney for his excellent results for his clients and the personal attention he gives to his cases. I would not hesitate to call Mr. Hinrichsen's office if I had a personal injury case.


    Brett Gowen Workers compensation Attorney
    Relationship: Fellow lawyer in community

  • Daphne Zeyuan Xiao

    I endorse this lawyer. He is a very knowledgeable and excellent PI attorney.


    Daphne Xiao Family Attorney
    Relationship: Fellow lawyer in community

Contact info

Law Office of Patrick L. Hinrichsen

720 Alhambra Blvd
Sacramento, CA, 95816


We have not found any instances of professional misconduct for this lawyer.
Avvo contributions
Legal answers
Award nameGrantorDate granted
MembershipUnited States District Court, Northern District of California2015
Awarded Partnership-Wilcoxen, Montgomery, Harbison & HinrichsenWilcoxen, Montgomery & Harbison2000
MembershipUnited States District Court, Eastern District of California1990
MembershipAll California Superior Courts1989
Summa Cum LaudeUniversity of Wisconsin, Platteville1986
President's Award, Future Farmers of AmericaSpencer HIgh School1982
Work experience
TitleCompany nameDuration
OwnerLaw Office of Patrick L. Hinrichsen2001 - Present
Pro-Tem Settlement Conference JudgeSacramento Superior Court1994 - Present
Youngest Named Partner @ age 36Wilcoxen, Montgomery, Harbison & Hinrichsen2000 - 2001
Adjunct ProfessorAmerican River College1990 - 1991
Personal Injury AssociateWilcoxen & Callahan et. al.1990 - 1999
Law Clerk InternSacramento Superior Court1989 - 1989
Association namePosition nameDuration
United States District Court, Northern District of CaliforniaMembership2015 - Present
East Sacramento Chamber of CommerceMember2001 - Present
Sacramento County Superior CourtJudge Pro-Tem1994 - Present
Sacramento County Bar AssociationMember1990 - Present
Capital City Trial Lawyers AssociationMember1990 - Present
United States District Court, Eatern District of CaliforniaMember1990 - Present
All California State CourtsMember1989 - Present
State Bar of CaliforniaMember1989 - Present
Consumer Attorneys of CaliforniaMember2009 - 2009
Consumer Attorneys of CaliforniaMember2006 - 2006
American Bar AssociationMember2001 - 2007
American River CollegeAdjunct Professor1990 - 1991
University of the Pacific, McGeorge School of LawMaster of Laws Student1990 - 1990
University of the Pacific, McGeorge School of LawLaw School Student1986 - 1989
Pre-law Club, University of Wisconsin, PlattevilleMember1982 - 1986
Future Farmers of America, Spencer HIgh School ChapterPresident1982 - 1982
Legal cases
Case nameOutcome
Motorcycle collision with vehicle.Partially settled, remaining underinsured motorist claim pending
Head on vehicle collisionHusband's case has settled and wife's case still pending
Motorcycle case with severe injuries.Settlement pending.
See all legal cases 
School nameMajorDegreeGraduated
McGeorge School of Law, University of the PacificLL.M. Degree-Master of Laws in Business and TaxationLL.M - Master of Laws1990
McGeorge School of Law, University of the PacificLawJD - Juris Doctor1989
University of Wisconsin, PlattevilleDouble Major in Business and Economics-Summa Cum LaudeUndergraduate1986
Spencer HIgh SchoolN/AHigh School Diploma1982
Speaking engagements
Conference nameTitleDate
Adjunct Professor with Classes at American River CollegeCivil Procedure Before Trial1991
Adjunct Professor with Classes at American River CollegeCivil Procedure Before Trial1990
Spencer Chapter, Future Farmers of AmericaExtemporaneous Speaking1982
Spencer Chapter, Futrue Farmers of AmericaParliamentary Procedure1982
Spencer Chapter, Futrue Farmers of AmericaPublic Speaking1982
Spencer Chapter, Future Farmers of AmericaParliamentary Procedure1981
Spencer Chapter, Future Farmers of AmericaPublic Speaking1981
Spencer Chapter, Future Farmers of AmericaExtemporaneous Speaking1981